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Sennheiser MM 400 X Bluetooth Headphones


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Found it cheaper? Click here. SKU: 6076
Ex VAT: 107.5

RRP: £179.95


Get call control, CD-quality sound and clear conversations, all wirelessly from one lightweight, folding Bluetooth® headset.

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Warranty length 2 Years
Fitting Over Ear
Colour Black
Colour Black
Brand Sennheiser Headphones

Tech Specs

Connector: 3.5 mm Jack, straight
Supported Profiles: A2DP + AVRCP + HSP + HFP
Codec: SBC, apt-X®
Ear coupling: Supra-aural
Transducer principle: Closed acoustics
Weight: 105 g
Charging time: 3 h
Listening time: 10 h
Technology: Bluetooth® Version 2.1 + EDR
Talk time: 20 h

Frequency response (microphone): 100 – 10000 Hz
Pick-up pattern: Omni-directional
Frequency response (headphones): 15 - 22000 Hz
Sound pressure level (SPL): 107 dB
THD, total harmonic distortion:   < 0,1% à 1 kHz

What's in the box?
- MM 400-X Bluetooth® headset
- USB wall charger for US, EU, UK and AU
- USB charging cable
- In-flight adapters (3.5mm double mono jack)
- Audio cable
- Carry case
- Quick set-up guide
- User manual

Product Description

Sennheiser MM 400 X headphones are a state-of-the-art stereo Bluetooth headset for use with your iPhone or Android phone - enjoy stunning audio quality and at the press of a button, 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.


- Wireless freedom–Bluetooth®2.1 guarantees hands-free convenience without wires and the advanced A2DP profile for Stereo Bluetooth® delivers optimized hi-fi stereo sound
- Invisible microphone – with high-performance sound quality for clear conversations
- Direct cable option – for use on airplanes, with an airline adapter included
- Easy headset controls – in one intuitive cluster
- Sennheiser sound quality – hi-fi headphone drivers ensure superior dynamic range, detail and excellent bass
- Wearing comfort – padded ear-cushions provide an excellent soft fit, even on long trips
- Easy-2-GO – the headset folds into a compact bundle for travel and storage, while the headband is metal-reinforced for durability
- Recharge it via the USB port on your laptop or the supplied lightweight wall charger with different plug fittings for Europe, the USA, the UK and Australia
- Connect everywhere – to mobiles, laptops, MP3 players, or in-flight entertainment systems with an all-in-one headset solution

Press Reviews

  • "Best wireless headphones, Awards 2012. A must-audition for owners of aptX enabled phones and laptops. We love Bluetooth when it’s of the aptX variety, and thankfully the audio-friendly tech is finally starting to hit more and more devices. We love Bluetooth when it’s of the aptX variety, and thankfully the audio-friendly tech is finally starting to hit more and more devices. In fact, you may well already own one with it built in, such as a MacBook running OS X 10.6.4 or later, or the new HTC One X or Samsung Galaxy S3 smartphone. If you’ve got one of those you should really take advantage by adding a pair of these aptX-toting Sennheiser MM 400-X headphones. They’re not the deepest deliverers of bass, but they’ve got plenty of detail and directness, especially in the vocals. True, they’re not quite up to the standard of wired headphones at the same money, but if you want the convenience of Bluetooth in a very portable and sonically capable headset, you really can’t go wrong with these Sennheisers." (What Hi-Fi Magazine Awards October 2013)

  • 'Smooth, refined sound; solid build and excellent effective portable option' (Hi-Fi Choice Magazine March 2015)

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