Reviews, reviews, reviews...

7.9 out of 10

Sennheiser MM 400

The MM 400-X is a state-of-the-art Stereo Bluetooth� headset f Read more

Great Deal: $265.00

Reviews and Problems with Sennheiser MM 400

Showing 1-10 of 61
Overall 2

One Star

Oladele B. Akogun "Jalingo", Amazon
14 August 2014
  • Summary: I got one but it did not turn on. It did not install in my laptop
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Overall 8

Excellent product delivering very acceptable depth and detail for this ...

box32s, Amazon
4 July 2014
  • Summary: Excellent product delivering very acceptable depth and detail for this type of headphone (ie Bluetooth) and not much to complain about. Tiny niggle is the overall full volume could be a little higher. :) as good as most middle range cable headphones upto £80.
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Overall 6

OK but way too quiet.

Soapy Tyler "spacemonkey", Amazon
9 June 2014
  • Summary: I bought these because they use the AptX codec and because Sennheiser have a good reputation. The AptX codec does offer significantly better sound over the standard A2DP codec and if you are after a pair of bluetooth cans then definitely make sure they are AptX enabled. I got these for use when I'm out and about, traveling etc. as they fold down to a very easily portable size.
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Overall 8

Good but not Great!!!

Mak, Amazon
4 June 2014
  • Summary: Pros: 1. Good sound 2. Works quite good with Bluetooth 3. Battery for bluetooth can be removed from headphone and put separately for charging which is cool. Cons: 1. Iphone volume control or song change controls doesn't work when u connect through wire with ur iphone which works perfectly when bluetooth is on even when u r connected through wire. 2. So called head supports on top starts hurting after using it for couple of hrs.
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Overall 8

Generally brilliant.

Mr. C. Renshaw, Amazon
30 May 2014
  • Summary: I bought these because I always liked the idea of wireless headphones. I am not disappointed. They paired with my computer perfectly (iMac Late 2013), and charged fully after a respectable 3 hours. I have yet to run out of battery and I have been listening for a good 8 hours. Sound isolation is better than I expected, very little sound escapes even on max volume (which is only really noticeable when in a silent room) They are easily foldable, very lightweight and come...
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Overall 8

Not compatible with PC?

Wolfy85, Amazon
29 March 2014
  • Summary: They worked straight away with my Galaxy smartphone, good sound too, but don't seem to be able to play the music from my bluetooth enabled HP Envy Dv6 PC...although the pairing was successful with it, and the headphones show up as connected on my PC, but sound continues to play through PC speakers, even with headphones switched on, I keep getting the blue flashing LED light, indicating the device is out of range, even though it's not the case..any ideas? Many thanks.
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Overall 10

Much loved present

s lendrum, Amazon
12 February 2014
  • Summary: given as a present, the recipient loves them. Have listened to them myself and feel I bought a great present
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Overall 10

Much better than beats

Lauren Picton, Amazon
23 January 2014
  • Summary: My husband and son both have beats by dre headphones which are falling apart so I decided to look for a different make and was recommended sennheiser. Although the beats have a slightly superior sound quality, the build quality on these are much better. I love that they fold up and the Bluetooth feature. They have a long battery life and are easy to operate. I would definitely recommend these over the beats.
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Overall 8

Good earphones

Tomas Hetherington, Amazon
6 December 2013
  • Summary: I researched many different headphones before buying these and found amazon feedback useful so i will return the favour. Firstly the facts: - Build quality is excellent far superior to Beats by Dre. - sound quality and volume is very good but not as good as Beats by Dre. - the wireless connection is very good and does not effect the sound at all but is very limited to about 2-3 metre range.
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Overall 4


Tony Davenport, Amazon
24 October 2013
  • Summary: Highly over-priced and very, very average performance. I bought these from the Apple store, and they are going back this very day. They are also quite quiet when using the wired connection. My £29.99 Sandstrom Bluetooth headphones I got from Currys wipe the floor with these, particularly in bass response, but I guess Sandstrom don't really have a name to trade on, which is why they aren't charging £179 (at least that was the Apple store price) ....
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