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New iPad and tablet compatible for streaming music
Discrete, invisible microphone is always out of the way
DuoFol transducer for exceptional clarity and rest-re
Warranty & Returns
Sennheiser Black MM 400-X On-Ear Foldable Bluetooth Phone Headset
Get call control, CD-quality sound and clear conversations, all wirelessly from one lightweight, folding Bluetooth® headset. A wired connection is available for in-flight use and charging options are flexible.
The MM 400-X is a state-of-the-art Stereo Bluetooth headset for multimedia-capable mobile phones, now supporting the hi-fi Apt-X codec!
With one press of a button, you can quickly switch between calls and music delivered in superb stereo sound. The invisible high-performance microphone ensures that conversations are clear, making this headset the perfect all-in-one sound solution for your digital lifestyle.
Using a closed, on-the-ear design to block ambient noise, the MM 400 is an ideal companion for the urban commuter or frequent traveller. Advanced DuoFol transducers provide the kind of detail and frequency response you would expect out of hi-fidelity audiophile speakers. The easy-to-use control panel is intuitive and simple enough to operate with your eyes closed - a common way of enjoying Sennheiser's world-famous sound quality.
The MM 400-X folds up for the ultimate in portability. The replaceable battery charges via USB or a wall adapter. For situations where Bluetooth is not permitted, you can use the included audio cable for a direct connection - making the MM 400-X an extremely capable wired headphone as well.
Bluetooth Technology With the Bluetooth technology and support for A2DP (Advanced Audio Distribution Profile), enjoy hands-free conversation and music without the limitation of wires. When Bluetooth is not permitted, you can also use them as wired headphones thanks to the direct cable option.
Superior Sound Quality The exclusive DuoFol transducer system delivers real life acoustics and hi-fi stereo sound on Apt-X capable audio sources over the Bluetooth link.
Unmatched Comfort Plush ear cushions seal out ambient noise while maintaining luxurious comfort for hours on-end.
Easy to Use Controls The easy-to-use controls are within optimum reach and provide concise "click" feedback.
Collapse and Go When you hit the road, collapse this headset and store it with its convenient portability.
What's in the Box
Learn more about the Sennheiser Electronic corp. MM 400-X
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