MM 550-X
Instruction manual
Contents
Contents |
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Important safety instructions ....................................................................... |
2 |
MM 550-X ......................................................................................................... |
4 |
Delivery includes ............................................................................................. |
6 |
Product overview ............................................................................................ |
8 |
Putting the MM 550-X into operation ......................................................... |
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Charging the battery pack ............................................................................ |
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Adjusting the headband ............................................................................. |
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Connecting the MM 550-X to the audio source ...................................... |
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Connecting the MM 550-X using the audio cable .................................. |
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Switching the MM 550-X on/off ................................................................ |
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Using the MM 550-X ..................................................................................... |
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Adjusting the MM 550-X to the listening situation ............................... |
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Changing the volume ................................................................................... |
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Remote-controlling connected devices from the |
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MM 550-X ....................................................................................................... |
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Transporting the MM 550-X ........................................................................ |
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Cleaning and maintaining the MM 550-X ................................................. |
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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
Important safety instructions
Important safety instructions
Read this instruction manual carefully and completely before using the product.
Always include this instruction manual when passing the product on to third parties.
Do not use an obviously defective product.
Preventing damage to health and accidents
Do not listen at high volume levels for long periods of time to prevent hearing damage.
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.
Keep the product, accessory and packaging parts out of reach of children and pets who could swallow smaller pieces.
Do not use the product in an environment that requires your special attention (e.g. in traffic).
Preventing damage to the product and malfunctions
Always keep the product dry and do not expose it to extreme temperatures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation.
Only clean the product with a soft, dry cloth.
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.
Only use the product in environments where wireless Bluetooth® transmission is permitted.
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.
2 | MM 550-X
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.
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Keep away from children. |
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When not using the |
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product for extended |
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periods of time, remove |
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the battery pack from the |
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product. |
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Immediately remove the |
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Only use battery packs rec- |
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battery pack from an obvi- |
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ommended by Sennheiser. |
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ously defective product. |
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Dispose of the battery |
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Switch battery pack- |
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pack at special collection |
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powered products off |
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points or return it to your |
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after use. |
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specialist dealer. |
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Only charge the battery |
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When not using the |
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pack with the appropriate |
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battery pack for extended |
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Sennheiser chargers. |
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periods of time, charge it |
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regularly (about every |
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3 months). |
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Only charge the battery |
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Do not heat above 70°C/ |
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pack at ambient tempera- |
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158°F, e.g. do not expose |
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tures between 10°C/50°F |
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to sunlight or throw into |
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and 40°C/104°F. |
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a fire. |
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Do not mutilate or |
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Do not continue to use |
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dismantle. |
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a defective battery pack. |
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Store charged battery |
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Do not expose to moisture. |
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packs so that the termi- |
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nals cannot contact each |
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other – danger of shorting |
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out/fire hazard. |
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MM 550-X | 3
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 HDTM
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.
NoiseGardTM
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.
4 | MM 550-X
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
Delivery includes
Delivery includes
MM 550-X MM 500-X
MM 550-X
MM 450-X
MM 500-X
MM 400-X
Quick Guide
Safety Guide
MM 550-X headset
BA 370 PX battery pack
USB charging cable
Mains unit with country adapters
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
Quick start guide incl. CD ROM with detailed instruction manual as PDF
Safety guide
Manufacturer Declarations
Safety Guide
Safety Guide
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“.
6 | MM 550-X
Delivery includes
Overview of the pictograms
Meaning of the pictograms for pressing a button
Pictogram |
Meaning |
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Briefly press this button. |
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Keep this button pressed for 4 seconds. |
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4s |
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Keep this button pressed until the desired setting is |
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made or the desired action is completed. |
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Meaning of the pictograms for the flashing of the LED
Pictogram |
Meaning |
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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 |
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The LED flashes once every 3 seconds. |
3s |
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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
Product overview
Product overview
A |
R |
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Headband |
Bluetooth button |
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Microphone |
Ear pad |
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NoiseGard button |
Socket for charging cable |
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SRS button |
Battery pack compartment |
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Socket for audio cable |
Microphone |
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A Operating panel
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5 |
1 |
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4 |
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2 |
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3 |
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1 LED |
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4 Rewind |
button |
2 Fast-forward button |
5 Master button |
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3 Volume |
button |
6 Volume |
button |
8 | MM 550-X
Putting the MM 550-X into operation
3h
1
3s
Putting the MM 550-X into operation
Before using the MM 550-X for the first time, remove the protection strip from the battery pack.
Charging the battery pack
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 on the battery pack lights up red. When the battery pack is fully charged, the LED on the battery pack lights up green.
When the battery pack is almost flat, the 
LED 1flashes 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 |
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NoiseGard and Bluetooth technology |
8 hours |
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NoiseGard without Bluetooth technology |
20 hours |
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Bluetooth technology without NoiseGard |
10 hours |
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Remove the battery pack if the headset will not be used for extended periods of time.
MM 550-X | 9
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