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MM 450 |
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Silence For Your Aural Indulgence |
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Instruction Manual
Contents
Contents |
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Important safety instructions .......................................................... |
2 |
MM 450 ................................................................................................ |
4 |
Delivery includes ................................................................................. |
5 |
Product overview ................................................................................ |
7 |
Putting the MM 450 into operation ................................................. |
8 |
Charging the battery pack ................................................................. |
8 |
Connecting the headset to the audio source .............................. |
10 |
Connecting the audio cable ............................................................ |
13 |
Adjusting the headband ................................................................. |
14 |
Using the MM 450 ............................................................................ |
15 |
Switching the headset on/off ........................................................ |
15 |
Adjusting the headset to the listening situation ....................... |
16 |
Changing the volume ....................................................................... |
17 |
Remote-controlling connected devices from the headset ....... |
18 |
Resetting the settings of the headset .......................................... |
20 |
Transporting the MM 450 ................................................................ |
21 |
Cleaning the MM 450 ....................................................................... |
22 |
If a problem occurs ... ....................................................................... |
23 |
Accessories and spare parts ............................................................ |
24 |
Specifications .................................................................................... |
25 |
Manufacturer Declarations .............................................................. |
26 |
1
Important safety instructions
Important safety instructions
•Please read these instructions carefully and completely before using the headset.
•Make these instructions easily accessible to all users at all times. Always include these instructions when passing the headset on to third parties.
•Only use the headset in aircraft where wireless Bluetooth® transmission is permitted.
•Do not use the headset in situations which require special attention (e.g. in traffic or when performing skilled jobs).
•Always keep the headset dry and do not expose it to extreme temperatures (normal operating temperatures: 10°C to 35°C).
–Use the headset with care and store it in a clean, dust-free environment.
–Switch off the headset after use to conserve battery power. Remove the batteries if the headset will not be used for extended periods of time.
•The headset contains magnets that generate a magnetic field which could cause dangerous interference with cardiac pacemakers and implanted defibrillators. Keep the headset at least 1.2” (3 cm) from cardiac pacemakers or implanted defibrillators.
•Please protect your hearing from high volume levels. Sennheiser headsets also sound exceptionally good at low volumes.
•Only use the supplied mains unit and charging cable.
•To reduce the risk of fire or electric shock, do not use the device and the mains unit near water and do not expose them to rain or moisture.
•Unplug the mains unit from the wall socket
–to completely disconnect the device from the mains
–during lightning storms or
–when unused for long periods of time.
•Only operate the mains unit from the type of power source specified in the chapter “Specifications” (page 25).
•Ensure that the mains unit is
–in a safe operating condition and easily accessible,
–properly plugged into the wall socket,
–only operated within the permissible temperature range,
–not covered or exposed to direct sunlight for longer periods of time in order to prevent heat accumulation (see “Specifications” on page 25).
•Do not operate the device and the mains unit near any heat sources.
•Only use attachments/accessories specified by Sennheiser.
2
Important safety instructions
Intended use of the headset
Intended use of the headset includes
•having read these instructions, especially the chapter “Important safety instructions” on page 2,
•using the headset within the operating conditions and limitations described in this instruction manual.
“Improper use” means using the headset other than as described in these instructions, or under operating conditions which differ from those described herein.
Safety instructions for the Lithium-Polymer battery pack
If abused or misused, the battery pack may leak. In extreme cases, it may even present
•a heat hazard,
• a fire hazard,
• an explosion hazard,
•a smoke or gas hazard.
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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Do not pack charged batteries |
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loose – danger of shorting |
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out/fire hazard. |
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Observe correct polarity. |
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Do not short-circuit. |
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Dispose of the battery pack |
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Switch battery pack-powered |
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at special collection points or |
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devices off after use. |
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return it to your specialist |
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dealer. |
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Only charge the battery |
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When not using the battery |
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pack with the appropriate |
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pack for extended periods |
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Sennheiser chargers. |
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of time, charge it regularly |
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(about every 3 months). |
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Only charge the battery pack |
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Do not heat above 70°C/ |
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at ambient temperatures |
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158°F, e.g. do not expose to |
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between 10°C and 40°C. |
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sunlight or throw into a fire. |
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Do not mutilate or dismantle. |
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Do not continue to use a |
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defective battery pack. |
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Immediately remove the |
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When not using the device for |
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battery pack from an obvi- |
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extended periods of time, |
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ously defective device. |
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remove the battery pack from |
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the device. |
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Only use the original |
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Do not expose to moisture. |
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Sennheiser battery pack. |
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3
MM 450
MM 450
The MM 450 headset provides undisturbed music enjoyment in noisy environments – even without the constrictions of cables. Its supra-aural, closed design and the latest active noise compensation technology (NoiseGard) make the MM 450 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 450 complies with the new 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 450 to communicate with your Bluetooth enabled device (e.g. mobile phone, MP3 player, PC or PDA) within a range of up to 10 meters.
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.
TalkThrough
The MM 450 headset 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, e.g. from turbine engines, is electronically filtered out, only allowing the voice of the other person to pass through the headset clearly.
Additional features
•Outstanding sound quality due to patented adaptive baffle damping and Duofol diaphragms
•Optimum protection against ambient noise due to active and passive noise attenuation
•Great for travel: comfortable, rugged and foldable headset construction with single-sided, detachable cable
•Without the detachable audio cable, the headset can be used as a passive hearing protector
4
Delivery includes
Delivery includes
1 MM 450 headset
1 BA 370 PX battery pack
1 USB charging cable
1 PSC 03R-050 mains unit with country adapters 1 audio cable (2.5 mm to 3.5 mm jack plug)
1 audio adapter (6.35 mm jack plug)
1 in-flight adapter (3.5 mm double mono jack plug) 1 transport case
1 quick start guide
1CD ROM with
–detailed instruction manual (PDF file)
–interactive instruction manual
5
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. |
4s |
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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 |
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This pictogram symbolizes a flashing. |
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This pictogram symbolizes an interruption. |
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This pictogram symbolizes an interval. |
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Examples of some of the pictograms that are used throughout this instruction manual:
Pictogram |
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Meaning |
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The LED flashes once every 3 seconds. |
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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.
6
Product overview
Product overview
A
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Headband |
Earpad |
Microphone |
Socket for charging cable |
NoiseGard button |
Battery pack compartment |
Socket for audio cable |
Microphone |
Bluetooth button |
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A Operating panel
6 |
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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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Star LED |
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Rewind |
button |
Fast-forward |
button |
Master button |
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Volume button |
Volume |
button |
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7
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