Sennheiser MM450 Instruction Manual download pdf (Page 5)

MM 450-X

4 | MM 450-X

MM 450-X

The MM 450-X is an accessory which allows for wireless music enjoyment

when used with mobile phones or other Bluetooth devices/Bluetooth

compliant devices. Its supra-aural, closed design and the latest active noise

compensation technology (NoiseGard) makes the MM 450-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 450-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 450-X to communi-

cate with your Bluetooth enabled device (e.g. mobile phone, MP3 player,

PC or PDA) within a range of up to 10 meters.

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 wire-

less 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 lis-

tening 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.

TalkThrough

The MM 450-X has a TalkThrough function, which allows you to communi-

cate with other people without having to remove the headset. When Talk-

Through 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 construc-

tion

• 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

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Sennheiser MM450 Instruction Manual Page 5

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