Contents 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 ...
• Always keep the headset dry and do not expose it to extreme temper- • The headset contains magnets that generate a magnetic field which • Please protect your hearing from high volume levels. Sennheiser head- • Only use the supplied mains unit and charging cable.
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• 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. Keep away from children. Observe correct polarity.
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MM 450 MM 450 The MM 450 headset provides undisturbed music enjoyment in noisy envi- ronments – 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.
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...
Delivery includes Overview of the pictograms Meaning of the pictograms for pressing a button Meaning of the pictograms for the flashing of the LED Examples of some of the pictograms that are used throughout this instruc- tion manual: The pictogram “i”? Pictogram Meaning Briefly press this button.
Putting the MM 450 into operation Putting the MM 450 into operation Charging the battery pack When charging the battery pack outside the headset, the LED battery pack lights up red. When the battery pack is fully charged, the When the battery pack is almost flat, the flashes red.
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First, connect the charging cable section and then connect the charging cable described in section b. Connecting the charging cable to the battery pack 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 Open the battery pack compartment cover...
Putting the MM 450 into operation Connecting the headset to the audio source 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 5 Bluetooth devices with which they have been paired.
Pairing the headset with an audio source Press the flashes 3 times red. The headset switches off (see “Switching the headset off” on page 15). Press the alternately flashes blue and red. On your audio source, activate the Bluetooth function “Add a new device”.
Putting the MM 450 into operation Disconnecting the Bluetooth connection To disconnect the Bluetooth connection to the audio source, you can switch off the headset or the Bluetooth function. To switch the headset off: To switch the Bluetooth function off: Bluetooth button is backlit, indicating the current...
Connecting 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) •...
Putting the MM 450 into operation 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: Wear the headset so that the headband head. Adjust the length of the headband so that –...
Hearing damage due to high volumes! Listening at high volume levels for long periods can lead to permanent hearing defects. Please protect your hearing. Sennheiser headsets also sound exceptionally good at low volumes. Set the volume to a medium level.
Using the MM 450 Adjusting the headset to the listening situation The headset has a NoiseGard function, a Bluetooth function and a Talk- Through function. Depending on the listening situation, you can switch these functions on or off. Switching the NoiseGard function on/off The NoiseGard function has to be switched on to be active.
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: Press the Bluetooth button and keep it pressed until the flashes 3 times blue. The Bluetooth function is switched on. To switch the Bluetooth function off: Press the Bluetooth...
Using the MM 450 Remote-controlling connected devices from the headset You can directly remote-control any device supporting the AVRCP profile and connected to the MM 450 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.
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Remote-controlling a mobile phone from the headset If your headset has a Bluetooth connection to your mobile phone, the Star ringing. The LED flashes 3 times blue. After a pause, the flashing is repeated. You can also hear the ring tone of your mobile phone if your mobile phone supports this function.
Using the MM 450 Resetting the settings of the headset You can reset the volume and connection settings of your headset to the original settings. This allows you to prevent that other users of the headset can access your Bluetooth enabled devices. You can then pair 5 new devices with the headset.
Transporting the MM 450 For space-saving transportation, the headset can be folded up compactly. Rotate the earcups by 90°. Tuck the earcups between the headband. Place the headset flat into the transport case. Your accessories can be transported in the cover of the transport case: –...
Cleaning the MM 450 Cleaning the MM 450 Cleaning the headset For reasons of hygiene, you should clean the headset regularly: Replacing the earpads You can replace the earpads. Spare earpads are available as accessories (see “Accessories and spare parts” on page 24). CAUTION! Liquids can damage the electronics of the device! Liquids entering the housing of the device can cause a short-...
If a problem occurs ... Problem Possible cause No operation The battery pack is flat. indicator – headset cannot be switched on No audio signal The jack plug of the when the audio audio cable is not cable is properly connected. connected No audio signal The headset is switched...
Accessories and spare parts Accessories and spare parts The following MM 450 accessories are available from your specialist dealer: Cat. No. 531404 531405 521829 531406 525731 531407 530695 502388 502390 502389 Accessory/spare part Earpads, 1 pair Headband padding, 1 pair PSC 03R-050 mains unit with 4 country adapters (EU/UK/US/AU) Audio cable...
Manufacturer Declarations Manufacturer Declarations Warranty Sennheiser Communications A/S gives a warranty of 24 months on this product. For the current warranty conditions, please visit our web site at www.sennheiser.com or contact your Sennheiser partner. CE Declaration of Conformity These devices comply with the basic requirements and other relevant provisions of the following directives: •...
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• Consult the dealer or an experienced radio/TV technician for help. This class B digital apparatus complies with the Canadian ICES-003. Changes or modifications made to this equipment not expressly approved by Sennheiser electronic Corp. may void the FCC authorization to operate this equipment. In compliance with:...