Page 1
MM 550-X
Instruction manual
Page 2
Contents
Contents
Important safety instructions ....................................................................... 2
MM 550-X ......................................................................................................... 4
Delivery includes ............................................................................................. 6
Product overview ............................................................................................ 8
Putting the MM 550-X into operation ......................................................... 9
Charging the battery pack ............................................................................ 9
Adjusting the headband .............................................................................11
Connecting the MM 550-X to the audio source ......................................12
Connecting the MM 550-X using the audio cable ..................................14
Switching the MM 550-X on/off ................................................................15
Using the MM 550-X .....................................................................................16
Adjusting the MM 550-X to the listening situation ...............................16
Changing the volume ...................................................................................17
Remote-controlling connected devices from the
MM 550-X .......................................................................................................18
Transporting the MM 550-X ........................................................................ 21
Cleaning and maintaining the MM 550-X ................................................. 22
If a problem occurs ... ...................................................................................23
Specifications ................................................................................................25
Valuable information on MM 550-X ........................................................... 26
SRS WOW HD .................................................................................................26
apt-X audio coding .......................................................................................27
Manufacturer Declarations ..........................................................................29
MM 550-X | 1
Page 3
Important safety instructions
Important safety instructions
왘 Read this instruction manual carefully and completely before using the
product.
왘 Always include this instruction manual when passing the product on to
third parties.
왘 Do not use an obviously defective product.
Preventing damage to health and accidents
왘 Do not listen at high volume levels for long periods of time to prevent
hearing damage.
왘 Always maintain a distance of at least 3.94“ (10 cm) between the ear
cups and the cardiac pacemaker or implanted defibrillator since the
product generates permanent magnetic fields.
왘 Keep the product, accessory and packaging parts out of reach of chil-
dren and pets who could swallow smaller pieces.
왘 Do not use the product in an environment that requires your special
attention (e.g. in traffic).
Preventing damage to the product and malfunctions
왘 Always keep the product dry and do not expose it to extreme temper-
atures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid
corrosion or deformation.
왘 Only clean the product with a soft, dry cloth.
왘 Switch off the product after use to conserve battery power. Remove the
battery pack if the product will not be used for extended periods of
time.
®
왘 Only use the product in environments where wireless Bluetooth
mission is permitted.
왘 Only use attachments/accessories supplied or recommended by
Sennheiser.
Intended use
The MM 550-X is a wireless Bluetooth headset that works with mobile
phones or other Bluetooth devices/Bluetooth compliant devices and
allows for wireless music enjoyment or calls.
“Improper use” means using the product
• other than as described in this instruction manual,
• under operating conditions which differ from those described in this
instruction manual.
trans-
2 | MM 550-X
Page 4
Important safety instructions
Safety instructions for the Lithium-Polymer battery pack
If abused or misused, the battery pack may leak. In extreme cases, it may
even present an explosion or fire hazard.
•Heat generation
• Fire development
•Explosion
• Smoke or gas development
Please understand that Sennheiser does not accept liability for damage
arising from abuse or misuse.
Keep away from children. When not using the
product for extended
periods of time, remove
the battery pack from the
product.
Immediately remove the
battery pack from an obviously defective product.
Dispose of the battery
pack at special collection
points or return it to your
specialist dealer.
Only charge the battery
pack with the appropriate
Sennheiser chargers.
Only charge the battery
pack at ambient temperatures between 10°C/50°F
and 40°C/104°F.
Do not mutilate or
dismantle.
Only use battery packs recommended by Sennheiser.
Switch battery packpowered products off
after use.
When not using the
battery pack for extended
periods of time, charge it
regularly (about every
3months).
Do not heat above 70°C/
158°F, e.g. do not expose
to sunlight or throw into
a fire.
Do not continue to use
a defective battery pack.
Store charged battery
packs so that the terminals cannot contact each
other – danger of shorting
out/fire hazard.
Do not expose to moisture.
MM 550-X | 3
Page 5
MM 550-X
MM 550-X
The MM 550-X is an accessory which allows for wireless music enjoyment
when used with mobile phones or other Bluetooth devices/Bluetooth
compliant devices. Its circumaural, closed design and the latest active
noise compensation technology (NoiseGard) makes the MM 550-X especially suitable for use with in-flight entertainment systems. Due to its
active and passive attenuation of ambient noise, it lets you enjoy music
even in noisy environments.
Bluetooth
The MM 550-X complies with the Bluetooth 2.1 standard. Via its Bluetooth
interface, it can be connected to a wide variety of Bluetooth enabled
devices. Bluetooth wireless technology allows the MM 550-X to communicate with your Bluetooth enabled device (e.g. mobile phone, MP3 player,
PC or PDA) within a range of up to 10 meters.
SRS WOW HD
SRS WOW HD improves the dynamic audio performance of compressed
and uncompressed audio by expanding the size of the audio image and
creating a deep, rich bass response. The patented techniques in
SRS WOW HD widen the horizontal sound field and raise the vertical sound
image, retrieving information lost in the mixing process to create a more
natural audio experience.
apt-X
With apt-X audio coding, you can be assured of crisp, pure and full stereo
sound. It allows you to not only hear, but experience and feel the audio as
it was intended. Utilizing apt-X, Bluetooth technology can now offer wireless audio quality that is indistinguishable from the highest quality wired
connection.
From major public broadcasters to film production studios, apt-X is used
throughout the world to transmit high quality digital audio from A to Z in
real-time. It was developed to meet the exacting standards of musicians
and audio engineers who love the exceptional dynamic range and high
fidelity it provides.
Now available on selected consumer devices, the apt-X technology ensures
that music lovers everywhere can stream the rich listening experience that
only apt-X can deliver.
NoiseGard
The NoiseGard active noise compensation system is based on the principle
of cancelling out sound using “anti-sound” (phase-inverted sound). Tiny
microphones pick up low-frequency ambient noise (up to 1 kHz) near the
ear. The NoiseGard electronics use this noise to generate a sound wave
which is the exact opposite (IE: at the same level but polarity reversed –
180° out-of-phase), the effect being that the polarity reversed signal
cancels most of the outside noise.
TM
TM
4 | MM 550-X
Page 6
MM 550-X
TalkThrough
The MM 550-X has a TalkThrough function, which allows you to communicate with other people without having to remove the headset. When TalkThrough is activated, professional quality microphones mounted on the
outside of the headset pick up all acoustic signals in the immediate
vicinity. Annoying background noise is electronically filtered out, only
allowing the voice of the other person to pass through the headset clearly.
Additional features
• Great for travel: comfortable, rugged and foldable headset construction
• Optional connection via audio cable for music enjoyment without
Bluetooth technology
• Outstanding sound quality due to Duofol diaphragms
• Optimum protection against ambient noise due to active and passive
noise attenuation
MM 550-X | 5
Page 7
Delivery includes
Delivery includes
MM 550-X headset
BA 370 PX battery pack
USB charging cable
Mains unit with country adapters
Quick Guide
Safety Guide
Safety Guide
MM 550-X
MM 500-X
Stereo audio cable
(2.5 mm to 3.5 mm jack plug)
Audio adapter
(3.5 mm jack socket to ¼" (6.35 mm) jack plug)
In-flight adapter
(3.5 mm jack socket to 3.5 mm double mono jack plug)
Transport case
MM 550-X
MM 450-X
MM 500-X
MM 400-X
Quick start guide incl. CD ROM with detailed instruction
manual as PDF
Safety guide
6 | MM 550-X
MM 550-X Travel | MM 450-X Travel | MM 500-X | MM 400-X
In complience with:
MM 550-X TravelMM 450-X Travel MM 500-X MM 400-X
USA
FCC ID: DMOCBSSAB
IC: 2099D –
IC: 2099D –
IC: 2099D –
IC: 2099D –
Canada
MMBTX
MMBTX
MMBTX
MMBTX
Europe
Australia/New Zealand
Singapore
CCAB09LP4110XX
Taiwan
R203WWJN000007
Japan
Russia
ME61
Korea
SE9 - xxxxxxxx
CMIIT ID:
China
10
xxxxxxxxxx
Statements regarding FCC and Industry Canada/
Déclaration requise par la FCC et l’Industrie Canada
FCC Declaration of Conformity (Do C)
SENNHEISER
MM 550-X Travel, MM 450-X Travel,
Model No:
MM 500-X, MM 400-X
Sennheiser Electronic Corporation
We,
One Enterprise Drive • Old Lyme •
CT 06371 • USA
Tel: +1 (860) 434 9190, ext. 144
Fax: +1 (860) 434 1759
Safety Guide
declare the above device comply with the requirements of Feder al Co mmun ica tio ns Com mis si on.
This device complies with Part 15 of the FCC rules. Operation is subjected to the following two conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may cause undes ired ope ratio n.
Safety Guide
Responsible Party:John Falcon e
Manufacturer Declarations
A list of accessories can be found on the MM 550-X product page at
www.sennheiser.com.
For information on suppliers, contact your local Sennheiser partner:
www.sennheiser.com >“Service & Support“.
Page 8
Delivery includes
Overview of the pictograms
Meaning of the pictograms for pressing a button
Pictogram Meaning
Briefly press this button.
Keep this button pressed for 4 seconds.
4 s
Keep this button pressed until the desired setting is
made or the desired action is completed.
Meaning of the pictograms for the flashing of the LED
Pictogram Meaning
This pictogram symbolizes a flashing.
This pictogram symbolizes an interruption.
This pictogram symbolizes an interval.
This pictogram symbolizes a continuous flashing.
Examples of some of the pictograms that are used throughout this instruction manual:
Pictogram Meaning
The LED flashes once every 3 seconds.
3s
The LED flashes 3 times per second.
The LED flashes in a rhythmic sequence.
The LED flashes blue 3 times and then goes off.
The pictogram “i”
This note provides important information!
Notes marked with the pictogram “i” provide important information on the use of the headset.
MM 550-X | 7
Page 9
Product overview
쐊
쐎
쐆
쐃
쐅
R
쐇
쐋
쐏
쐄
쐂
A
Product overview
쐃 Headband 쐂 Bluetooth button
쐇 Microphone 쐆 Ear pad
쐋 NoiseGard button 쐊 Socket for charging cable
쐏 SRS button 쐎 Battery pack compartment
쐄 Socket for audio cable 쐅 Microphone
Operating panel
A
6
5
4
1 LED
2 Fast-forward button 5 Master button
3 Volume button 6 Volume button
1
2
3
4 Rewind button
8 | MM 550-X
Page 10
Putting the MM 550-X into operation
3s
Putting the MM 550-X into operation
왘 Before using the MM 550-X for the first time, remove the protection
strip from the battery pack.
1
3h
Charging the battery pack
왘 Before using the battery pack for the first time, charge it for at least
3 hours. The battery pack can also be charged inside the headset
during operation.
When charging the battery pack, the LED 쐈 on the battery pack lights up
red. When the battery pack is fully charged, the LED 쐈 on the battery pack
lights up green.
쐈
When the battery pack is almost flat, the LED 1 flashes red. You hear a
short, descending acknowledgement tone.
The operating time of the battery pack depends on the device settings, the
listening situation and the audio sources used. The operating time will be
reduced if you use SRS WOW HD.
Type of use Operating time
NoiseGard and Bluetooth technology 8 hours
NoiseGard without Bluetooth technology 20 hours
Bluetooth technology without NoiseGard 10 hours
Remove the battery pack if the headset will not be used for
extended periods of time.
MM 550-X | 9
Page 11
Putting the MM 550-X into operation
b
a
쐉
EU
US
AU
UK
쐊
쐎
Possibilities of charging the battery pack
First, connect the charging cable 쐉 to the battery pack as described in
section a and then connect the charging cable 쐉 to a power source as
described in section b.
쐎
Connecting the charging cable to the battery pack
a
You can charge the battery pack either inside or outside the headset. This
is helpful if you are using a spare battery pack (to be ordered separately).
To charge the battery pack inside the headset:
왘 Open the cover of the battery pack compartment 쐎 on the left ear cup.
왘 Connect the charging cable 쐉 to the socket for charging cable 쐊 on the
headset.
To charge the battery pack outside the headset:
왘 Open the cover of the battery pack compartment 쐎 on the left ear cup.
왘 Press the button next to the battery pack compartment and remove
the battery pack.
쐊
왘 Connect the charging cable 쐉 to the socket for charging cable 쐊 on the
battery pack.
10 | MM 550-X
Page 12
Putting the MM 550-X into operation
b
쐈
Connecting the charging cable to the mains unit, to a PC or to other USB
devices
In order to charge the battery pack, you can connect the charging cable to
either the USB socket of your PC or the supplied mains unit or to other USB
devices.
To connect the charging cable to a PC:
왘 Connect the USB plug of the charging cable 쐉 to the USB socket of
your PC.
The battery pack is being charged. The LED 쐈 on the battery pack
lights up red.
To connect the charging cable to the mains unit:
쐃
쐉
EU
UK
US
AU
왘 Connect the charging cable 쐉 to the mains unit.
왘 Plug the suitable country adapter onto the mains unit.
왘 Plug the mains unit into a wall socket.
The battery pack is being charged. The LED 쐈 on the battery pack
lights up red.
왘 After charging, unplug the mains unit from the wall socket.
If you have charged the battery pack outside the headset:
왘 Insert the charged battery pack into the headphone’s battery pack
compartment until it locks into place.
왘 Close the cover of the battery pack compartment 쐎.
Adjusting the headband
For optimum transmission quality, good noise attenuation and best possible comfort, the headband has to be adjusted to properly fit your head:
왘 Wear the headset so that the headband 쐃 runs over the top of your
head.
왘 Adjust the length of the headband so that
–the ear pads 쐆 rest comfortably against the ears,
– you feel even, gentle pressure around your ears,
– a snug fit of the headband 쐃 on the head is ensured.
왘 To ensure maximum noise attenuation, final adjustment is best made
in a noisy environment.
쐆
MM 550-X | 11
Page 13
Putting the MM 550-X into operation
Connecting the MM 550-X to the audio source
CAUTION
Danger of malfunction due to radio waves!
The transmitted radio waves of mobile phones can impair the operation of
sensitive and unprotected devices.
왘 Only use the headset in environments where wirless Bluetooth trans-
mission is permitted.
The headset complies with the Bluetooth 2.1 standard. In order that data
can be transmitted wirelessly using Bluetooth technology, you have to
register your headset with your audio source (pairing).
The headset can save the connection profiles of up to 8 Bluetooth devices
with which it has been paired. After switch-on, the headset automatically
connects to one of these devices.
If you pair the headset with a ninth audio source, the saved connection
profile of the first Bluetooth device will be overwritten. If you want to
re-establish a connection with the first audio source, you have to pair the
headset with this audio source again.
왘 If your audio source does not have a Bluetooth interface, use an
optional dongle.
BTD 300iBTD 500 USB
For an optimum listening experience, your audio source has to
support the A2DP profile.
12 | MM 550-X
Page 14
Putting the MM 550-X into operation
Pairing the MM 550-X with an audio source
왘 Make sure that your headset is switched off (see “Switching the
MM 550-X off” on page 15).
When switching the headset on for the first time, it will automatically go
into pairing mode. The headset is waiting to be paired with a Bluetooth
enabled device.
1
1
1
1
5
5
왘 Press the Master button 햶 and keep it pressed until the LED 1
alternately flashes blue and red.
왘 On your audio source, activate the Bluetooth function “Add a new
device”.
왘 Proceed as described in the instruction manual of the audio source.
If a suitable audio source is found, the devices will exchange device identification information. The LED 1 flashes 3 times blue and you hear an
ascending beep. The devices have identified each other and the headset is
paired with the audio source.
PIN code
When the audio source prompts for a password or PIN code, enter
the default PIN code “0000”.
If no device is found within approx. 5 minutes, the LED 1 flashes
3 times red and you hear a descending beep. The headset will then try for
3 minutes to connect to one of the up to 8 previously paired audio sources.
If this fails, the headset automatically switches off after 60 minutes.
왘 In this case, repeat the necessary steps to pair the headset with the
audio source again.
Disconnecting the Bluetooth connection
The Bluetooth button 쐂 is backlit, indicating the current setting. The
backlighting goes off after a short time to conserve energy.
왘 Press any button on the headset to display the current setting of the
Bluetooth function.
To disconnect the Bluetooth connection to the audio source, you can
switch off the headset or the Bluetooth function. This setting is retained
until the Bluetooth function is switched on again.
To switch the headset off:
왘 Press the Master button 햶 and keep it pressed until the LED 1
flashes 3 times red.
You hear a descending beep. The Bluetooth connection is automatically
deactivated. The headset switches off.
To switch the Bluetooth function off:
쐂
왘 Press the Bluetooth button 쐂 and keep it pressed until the LED 1
flashes 3 times red. You hear a descending beep.
The Bluetooth button 쐂 goes off. The Bluetooth function is switched
off.
MM 550-X | 13
Page 15
Putting the MM 550-X into operation
Connecting the MM 550-X using the audio cable
Connecting the audio cable
You can connect the headset to the audio source using the audio cable if:
• you do not want to use the Bluetooth function,
• you are not allowed to use the Bluetooth function (some airlines do not
allow Bluetooth transmission)
or
• the battery pack is flat.
When the audio cable is connected to the headset, the Bluetooth
function cannot be switched on.
씈
1
1
씉
씊
If the headset is already connected to the audio source via the Bluetooth
interface, the Bluetooth connection is automatically disconnected when
you connect the audio cable. The LED 1 flashes 3 times red and you
hear a descending beep.
왘 Connect the 2.5 mm jack plug of the audio cable to the socket 쐄 of the
headset.
왘 Connect the 3.5 mm jack plug of the audio cable 씈 to
Music
Photos
Videos
Extras
Settings
Shuffle Songs
– the headphone socket of your audio source or
– the audio adapter for ¼" (6.35 mm) jack socket 씉 if the 3.5 mm jack
plug of the audio cable is too small or
– the in-flight adapter 씊 if you want to use the headset with an
in-flight entertainment system.
When the audio cable is connected to your audio source, you hear the
sound from your audio source and the LED 1 flashes blue.
Detaching the audio cable
If you only want to use the MM 550-X as a Bluetooth headset, you can
detach the audio cable 씈.
왘 Pull the 2.5 mm jack plug of the audio cable 씈 from the socket 쐄 of
the headset.
14 | MM 550-X
When detaching the audio cable, the Bluetooth function is not automatically switched on.
왘 Switch the Bluetooth function on again (see “Switching the Bluetooth
function on/off” on page 17).
Page 16
Putting the MM 550-X into operation
1
5
Switching the MM 550-X on/off
WARNING
Danger of hearing damage!
Listening at high volume levels for long periods can lead to permanent hearing defects.
왘 Before putting the headset on, set the volume to a low level.
왘 Do not continuously expose yourself to high volumes.
Switching the MM 550-X on
왘 Press the Master button 햶 and keep it pressed until the LED 1
flashes blue. You hear an ascending beep.
– When switching the headset on for the first time, it will automatically
go into pairing mode.
The headset is waiting to be paired with a Bluetooth enabled device
(see page 13).
– When the headset is already paired with an audio source, the
Bluetooth connection is automatically established.
You hear an ascending beep and then you hear your audio source.
– When the headset is already paired with an audio source but the
audio source is switched off or out of range, the LED 1 flashes
blue.
The headset will try for 3 minutes to connect to one of the up to
8 previously paired audio sources. If this fails, the headset automatically switches off after 60 minutes.
1
5
Switching the MM 550-X off
왘 Press the Master button 햶 and keep it pressed until the LED 1
flashes 3 times red.
You hear a descending beep. The Bluetooth connection is automatically
deactivated. The headset switches off.
MM 550-X | 15
Page 17
Using the MM 550-X
쐏
Using the MM 550-X
Adjusting the MM 550-X to the listening situation
The headset has a SRS WOW HD function, a NoiseGard function, a
Bluetooth function and a TalkThrough function. Depending on the
listening situation, you can switch these functions on or off.
If your audio source supports apt-X, the MM 550-X automatically streams
music wirelessly in high quality (apt-X). If your audio source does not
support apt-X, music is streamed in standard quality (SBC).
Switching the SRS WOW HD function on/off
SRS WOW HD ensures enhanced sound quality and bass boost performance, thus allowing for a spectacular sound experience.
To switch the SRS WOW HD sound enhancement on:
왘 Briefly press the SRS button 쐏.
The button is backlit in yellow and the SRS WOW HD function is
switched on.
To switch the SRS WOW HD sound enhancement off:
왘 Briefly press the SRS button SRS 쐏.
The yellow backlighting goes off and the SRS WOW HD function is
switched off.
Switching the NoiseGard function on/off
The NoiseGard button 쐋 is backlit, indicating the current setting. The
backlighting goes off after a short while in order to conserve energy.
왘 Press any button on the headset to display the current setting of the
NoiseGard active noise compensation.
The NoiseGard function has to be switched on to be active. If the NoiseGard
function is switched off, the MM 550-X can also be used as a conventional
headset.
To switch the NoiseGard function on:
왘 Press the NoiseGard button 쐋 for 2 seconds.
2s
The button is backlit in red and the NoiseGard function is switched on.
To switch the NoiseGard function off:
왘 Press the NoiseGard button 쐋 for 2 seconds.
The red backlighting goes off and the NoiseGard function is switched
off.
Conserving energy
Switch the NoiseGard function off after use to conserve energy.
16 | MM 550-X
Page 18
Using the MM 550-X
Switching the TalkThrough function on/off
The MM 550-X provides excellent attenuation of ambient noise. The TalkThrough function allows you to communicate undisturbed with other
people without having to remove the headset even when NoiseGard is
switched on.
To switch the TalkThrough function on:
왘 Briefly press the NoiseGard button 쐋.
The LED 1 lights up red. The TalkThrough function is switched on.
To switch the TalkThrough function off:
왘 Briefly press the NoiseGard button 쐋.
The LED 1 goes off. The TalkThrough function is switched off.
When the TalkThrough function is switched on, you cannot listen to
music.
Switching the Bluetooth function on/off
Via the Bluetooth interface, the headset can be connected to a wide
variety of Bluetooth enabled devices.
To switch the Bluetooth function on:
쐂
왘 Press the Bluetooth button 쐂 and keep it pressed until the LED 1
flashes 3 times blue. The Bluetooth function is switched on.
To switch the Bluetooth function off:
왘 Press the Bluetooth button 쐂 and keep it pressed until the LED 1
flashes 3 times red. You hear a descending beep.
The Bluetooth button 쐂 goes off. The LED 1 flashes blue and the
Bluetooth function is switched off.
Changing the volume
The MM 550-X allows you to change the volume of the audio signal during
a call or while listening to music:
Button Duration Function
Incrementally increases the volume
+
Incrementally reduces the volume
–
1 s
++
Continuously increases the volume
1 s
––
Continuously reduces the volume
If you press the respective button briefly, the volume is changed incrementally; if you hold down the button, the volume is changed continuously.
When the minimum or maximum volume is reached, you hear an acknowledgement tone.
MM 550-X | 17
Page 19
Using the MM 550-X
1 s
Remote-controlling connected devices from the MM 550-X
You can directly remote-control any device supporting the AVRCP profile
and connected to the MM 550-X by using the buttons on the headset.
Please refer to the instruction manual of your audio source for information
on whether your device supports the AVRCP profile.
Remote-controlling the audio source from the MM 550-X
If your headset has a Bluetooth connection to an audio source (e.g. mobile
phone, iPod, MP3 or CD player), you can use the MM 550-X to remotecontrol the audio source as follows:
Button Duration Function
Plays the track
Stops the track (acknowledgement tone)
Skips to the next track
Skips to the previous track
1 s
1 s
These functions are not supported by all connected Bluetooth devices.
Fast-forwards the track
Rewinds the track
18 | MM 550-X
Page 20
Using the MM 550-X
5
1
Managing calls
When your MM 550-X is connected to a mobile phone and you receive a
call, the LED 1 flashes blue 3 times per second. You can also hear the
ring tone of your mobile phone if your mobile phone supports this function.
If your mobile phone automatically transfers the call to the headset, you
hear a beep in the headset. If your mobile phone does not automatically
transfer the call to the headset, you have to press a button on your mobile
phone to transfer the call (see the instruction manual of your mobile
phone).
왘 To manage your calls from your MM 550-X, press the Master button 5
or the Bluetooth button 쐂:
쐂
Button Duration Function
Accepts the call
쐂
2s
Rejects the call (acknowledgement tone)
Ends the call
Transfers the ongoing call back to the
5s
mobile phone
Redialing
The redialing function must be supported by your mobile phone or
Bluetooth device (with HF profile respectively) and be activated.
왘 To redial the last number from your MM 550-X, press the
Bluetooth button 쐂:
Button Duration Function
Redials the last number
1 s
(acknowledgement tone)
Stops redialing
MM 550-X | 19
Page 21
Using the MM 550-X
2s
Voice dialing
The voice dialing function must be supported by your mobile phone (with
HF profile) and be activated. Follow the instructions in the instruction
manual of your mobile phone.
왘 To activate the voice dialing function from your MM 550-X, press the
Bluetooth button 쐂:
쐂
Button Duration Function
Activates voice dialing
Deactivates voice dialing
Muting the headset’s microphone
왘 To mute the microphone on your MM 550-X, press the the
Bluetooth button 쐂:
Button Duration Function
쐂
Activates the muting function
(acknowledgement tone)
Any
button
Deactivates the muting function
Switching the Bluetooth function off
If you press the Bluetooth button 쐂 too long, the Bluetooth function switches off!
20 | MM 550-X
Page 22
Transporting the MM 550-X
PXC 360
BT
Transporting the MM 550-X
For space-saving transportation, the headset can be folded up flatly and
compactly.
왘 Rotate the ear cups by 90°.
왘 Fold the ear cups inwards.
왘 Place the headset flat into the transport case.
Your accessories can be transported in the front bag of the transport case:
• Audio adapter (¼" (6.35 mm) jack plug)
• In-flight adapter (3.5 mm double mono jack)
MM 550-X | 21
Page 23
Cleaning and maintaining the MM 550-X
Cleaning and maintaining the
MM 550-X
Cleaning the MM 550-X
CAUTION
Liquids can damage the electronics of the product!
Liquids entering the housing of the product can cause a short-circuit and
damage the electronics.
왘 Keep all liquids far away from the product.
왘 Do not use any solvents or cleansing agents.
For reasons of hygiene, you should clean the headset regularly:
왘 Before cleaning, make sure that the product is not recharged via the
왘 Only use a dry and soft cloth to clean the product.
Replacing the ear pads
You can replace the ear pads. Spare ear pads are available from your
Sennheiser partner or can be ordered at www.sennheiser.com under
“Service & Support”.
mains.
쐆
왘 Grasp the edge of the ear pad 쐆 behind the ear cup and peel it up and
away from the ear cup.
왘 Slide the new ear pad 쐆 onto the ear cup.
22 | MM 550-X
Page 24
If a problem occurs ...
If a problem occurs ...
Problem Possible cause Solution Page
No operation
indicator –
headset
cannot be
switched on
No audio
signal when
the audio cable
is connected
No audio
signal during
Bluetooth
connection
Headset
cannot be
paired
No audio
signal during
NoiseGard
operation
The battery pack
is flat.
The jack plug of
the audio cable is
not properly
connected.
The headset is
switched off.
The headset is not
paired with an
audio source.
The Bluetooth
function on the
headset is
switched off.
The audio cable is
connected to the
headset.
The volume is
adjusted too low.
The pairing does
not work.
The audio source
is switched off.
The headset is
switched off.
The TalkThrough
function is
switched on.
When in TalkThrough mode,
the audio signal
is not available.
Recharge the battery pack. 9
Check the connection to
your audio source.
Switch the headset on. 15
Check if the headset is
paired. If necessary, pair the
headset with the audio
source again.
Switch the Bluetooth function on the headset on.
The connection of the audio
cable automatically
switches off the Bluetooth
connection. Remove the
audio cable and then switch
the Bluetooth function on
again.
Increase the volume. 17
Check if the audio source
supports the A2DP profile.
If not, use one of the
optional dongles.
Switch the audio source on. 12
Switch the headset on. 15
Switch the TalkThrough
function off.
14
13
17
14
17
–
MM 550-X | 23
Page 25
If a problem occurs ...
1
5
1
5
쐂
2s
Problem Possible cause Solution Page
Headset do not
react to any
button press
Bluetooth
connection is
suddenly
interrupted
If a problem occurs that is not listed in the above table or if the problem
cannot be solved with the proposed solutions, please contact your
Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at
www.sennheiser.com.
The operation of
the headset is
faulty.
The Bluetooth
button has been
pressed too long.
Remove the battery pack
from the headset. Reinsert
the battery pack into the
headset. Switch the headset
on again.
Switch the Bluetooth
function on.
–
17
Resetting the settings of the MM 550-X
You can reset all settings of your headset to the factory default settings.
This allows you to prevent that other users of the headset can access your
Bluetooth enabled devices. You can then pair eight new devices with the
headset.
왘 Press the Master button 5 and keep it pressed until the LED 1
flashes 3 times red. The headset switches off (see “Switching the MM
550-X off” on page 15).
왘 Press the Master button 5 and keep it pressed until the LED 1
alternately flashes blue and red.
왘 Press the Bluetooth button 쐂 for at least 5 seconds until the settings
5s
of the headset are reset.
24 | MM 550-X
Page 26
Specifications
Specifications
Transducer principle dynamic, closed
Ear coupling circumaural
Frequency response 15 – 22,000 Hz
Nominal impedance
active/passive 590/100 Ω
Sound pressure level at
1 kHz and 1 Volt 107 dB SPL
THD at 1 kHz < 0.1%
Audio connection 3.5 mm stereo jack socket
Audio adapter ¼" (6.35 mm) stereo jack plug
In-flight adapter 3.5 mm double mono jack plug
Cable length
Audio cable
Charging cable
Weight 179 g
BA 370 PX battery pack
Charging time
Operating time
Operating temperature range 0°C to +40°C
Storage temperature range –10°C to +70°C
Passive noise attenuation 25 dB
NoiseGard
active noise compensation 23 dB
1.4 m
0.8 m
3.7 V; 250 mAh Lithium-Polymer
3 hrs
8 hrs/10 hrs/20 hrs
PSAI05R-050Q or SIL SSA-4P 5050F mains unit
Nominal input voltage 110 – 240 V~
Nominal input current max. 0.2 A
Mains frequency 50 – 60 Hz
Nominal output voltage 5 V
Nominal output current SIL SSA-4P 5050F: max. 0.5 A
PSAI05R-050Q: max. 1 A
Operating temperature range 0°C to +45°C
Storage temperature range −40°C to +85°C
Relative humidity 20 to 90% RH
Weight approx. 179 g
Bluetooth
Bluetooth version 2.1 + EDR
Range up to 10 m
Transmission frequency 2.4 GHz
Transmission power 8 dBm
Profiles HSP, HFP, A2DP, AVRCP
Codec SBC, apt-X
MM 550-X | 25
Page 27
Valuable information on MM 550-X
Valuable information on
MM 550-X
SRS WOW HD
Remarkable enhancement for
mono and stereo playback
Immersive 3D audio SRS WOW HD adjusts the space of the stereo image and eliminates the
Center Control SRS WOW HD adjusts the mix of the center information into the stereo
Optimal headphone listening SRS WOW HD includes techniques based on patented HRTFs to deliver a
Elevated sound image SRS WOW HD adjusts the horizontal plane of the audio image from non-
Definition Control SRS WOW HD delivers a livelier, more brilliant sound. The purified sound
SRS WOW HD improves the dynamic audio performance of compressed
and uncompressed audio by expanding the size of the audio image and
creating a deep, rich bass response. The patented techniques in
SRS WOW HD widen the horizontal sound field and raise the vertical sound
image, retrieving information lost in the mixing process to create a more
natural audio experience. SRS WOW HD also shapes a maximized bass
response using sculpted filters and driver physics to go beyond the lowfrequency limitations of speakers and headphones. SRS WOW HD also adds
Definition™ Control, for realistic clarity, and the new Center Control, for
dynamic extraction and positioning of dialog.
narrow stereo sweet spot and creates an immersive stereo image from
mono and stereo source material. It also restores audio realism which is
often masked by traditional recording and playback techniques.
image. It works in tandem with the space control to create the perfect balance, acting as a “zoom” lens for sound. It can bring content to the forefront to dominate the mix or fade it backward, virtually eliminating the
content all together.
natural, non-fatiguing headphone listening experience by placing the perception of the stereo sound image outside of one’s head making it more
realistic and immersive.
optimally placed speakers placing it at an appropriate listening level.
can be heard in musical vocals, high-frequency instruments, and exposes
details of ambient sound present in the audio source.
Bigger bass SRS WOW HD includes psychoacoustic bass enhancement techniques
which enhance the perception of low bass frequencies from speakers and
headphones which, under normal conditions, can not produce these
frequencies due to the inherent low frequency cut off and driver size
limitations.
Audio level management SRS WOW HD includes an audio level management system which monitors
the output levels of the entire product audio system and manages the
level dynamically to prevent sudden audio clipping.
Features of SRS WOW HD
• Stereo enhancement which improves dynamic audio performance
• Sculpted bass response for maximum thump on small speakers
• More natural audio with a wider sound field and raised sound image
• High-definition control for realistic clarity
• Center Control for dynamic extraction and positioning of dialog
26 | MM 550-X
Page 28
Valuable information on MM 550-X
Outstanding audio quality apt-X technology is what wireless audio has been waiting for. With apt-X
Professional grade sound Until now, apt-X has been the best-kept secret of the professional audio
Revolutionizing Bluetooth
listening
apt-X legacy If you have ever been to the movies or listened to the radio then chances
apt-X audio coding
audio coding, you can be assured of crisp, pure and full stereo sound. It
allows you to not only hear, but experience and feel the audio as it was
intended. Utilizing apt-X, Bluetooth can now offer wireless audio quality
that is indistinguishable from the highest quality wired connection.
industry. From major public broadcasters to film production studios, apt-X
is used throughout the world to transmit high quality digital audio from
A to Z in real-time. It was developed to meet the exacting standards of
musicians and audio engineers who love the exceptional dynamic range
and high fidelity it provides.
Now available on selected consumer devices, the technology ensures that
music lovers everywhere can stream the rich listening experience that only
apt-X can deliver.
Bluetooth technology has revolutionized our communications and lifestyle by eliminating troublesome wires and letting us get on with life “on
the move”. Listening to a mobile phone conversation on a Bluetooth earpiece sounds just fine but when it comes to delivering full stereo sound,
a little extra help is required. apt-X works within Bluetooth to deliver
CD quality audio, ensuring you are getting the most from your wireless
listening experience.
In order to deliver two-channel digital sound within the Bluetooth A2DP
profile, audio compression is necessary. While traditional audio compression technologies struggle to provide full-bandwidth, high-fidelity audio
over Bluetooth, apt-X works to ensure you enjoy the fullest, richest sound
your music collection has to offer.
are you’ll already have heard apt-X in action. Over 20,000 radio stations
across the world and thousands of cutting-edge film studios rely on apt-X
for high quality audio delivery.
The digital compression technology now known as apt-X was originally
developed in Queen’s University, Belfast, Northern Ireland. The technology
was first brought to market for radio automation applications to store CD
quality audio on computer hard drives for direct playout during radio
shows, hence automating the process of the disc jockey.
The acclaim the technology received lead to further research and development and throughout the 1990s the technology was used by Broadcast
and Post-production studios worldwide to deliver high-fidelity, low latency
audio in situations where bandwidth was limited. The same core principles
that have earned apt-X worldwide acclaim in the Broadcast and Post_Production markets make it the perfect solution for delivering high
quality audio on wireless devices. apt-X is leading the way in bringing proaudio quality to the discerning consumer.
MM 550-X | 27
Page 29
Valuable information on MM 550-X
apt-X key features:
• Blind listening tests with industry reference audiences have shown
that apt-X over Bluetooth is indistinguishable from audio delivered
over wired technology. Unlike psychoacoustic-based technologies such
as MP3 or AAC, apt-X can be used to transport audio without degrading
the audio quality. With MPEG/AAC compression, the encoding process
is destructive and content perceived as “irrelevant” is discarded.
apt-X’s transparent, non-destructive approach ensures that every frequency present in the original signal is preserved in the encoded and
decoded signal.
• Dynamic range of >92 dB for 16 bit audio and >120 dB for 24 bit audio.
• The overall framework of apt-X ensures a high degree of resilience to
random bit errors, with the bit error response well matched to the auditory response of the human ear. apt-X employs connection and synchronization techniques to ensure a robust connection and enable
delivery of audio even under stressful conditions.
• Shortest processing delay of any professional audio compression tech-
nology. Many current wireless devices suffer from unwanted delays
which cause lip-sync issues, apt-X can enable real-time delivery of wireless audio ensuring seamless integration when used with video
devices.
• apt-X encoded audio fits neatly within the available bandwidth of wire-
less transmission standards to offer an efficient solution for bandwidth-restricted connections.
28 | MM 550-X
Page 30
Manufacturer Declarations
Manufacturer Declarations
Warranty
Se nnheis er e lectronic G mbH & Co . KG giv es a warrant y of 24 m onths on this
product. For the current warranty conditions, please visit our website at
www.sennheiser.com or contact your Sennheiser partner.
In compliance with the following requirements
• RoHS Directive (2002/95/EC)
• WEEE Directive (2002/96/EC)
Please dispose of this product by taking it to your local collection
point or recycling center for such equipment.
• Battery Directive (2006/66/EC)
The supplied standard/rechargeable batteries can be recycled.
Please dispose of them as special waste or return them to your
specialist dealer. In order to protect the environment, only
dispose of exhausted batteries.
CE Conformity
• R&TTE Directive (1999/5/EC)
• EMC Directive (2004/108/EC)
• Low Voltage Directive (2006/95/EC)
• ErP directive (2009/125/EC )
The declaration is available at www.sennheiser.com. Before putting the
product into operation, please observe the respective country-specific
regulations!
Trademarks
Sennheiser and NoiseGard™
are registered trademarks of Sennheiser
electronic GmbH & Co. KG.
®
The Bluetooth
word mark and logos are registered trademarks owned by
Bluetooth SIG, Inc. and any use of such marks by Sennheiser electronics
GmbH & Co. KG is under license.
®
iPhone
and iPod® are registered trademarks of Apple Inc, registered in the
U.S. and other countries.
SRS WOW HD™
is a registered trademark of SRS Labs, Inc.
Definition™ Control is a registered trademark of SRS Labs, Inc.
apt-X is a
registered trademark of CSR plc.
MM 550-X | 29
Page 31
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com
Publ. 12/11, 546145/A01
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