Sennheiser MM 400 Wireless Stereo Bluetooth Headset
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- Bluetooth 2.1 for hands-free convenience and advanced A2DP profile for optimised Stereo sound
- Invisible microphone with high-performance sound quality, padded ear-cushions for comfortable fit
- Direct cable option, Easy headset controls, 2-year international warranty
- Headset folds into a compact bundle, headband is metal-reinforced for durability
- Recharge battery via USB or the international wall charger (supplied)
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The MM 400 is a state-of-the-art Stereo Bluetooth® headset for multimedia mobile phones.
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.
Colour of product: Black
Connectivity technology: Wireless
Device interface: 3.5 mm (1/8")
Ear coupling: Supraaural
Headphone frequency: 15 - 22000 Hz
Weight: 105 g
Wireless range: 10 m
Top Customer Reviews
The purpose of me purchasing these headphones was to go with my new iPad. They paired instantly and I was anxious to clarify the lip sync delay reported by some users whilst watching video. I can confirm that there is no audio delay when watching video on iPad. That is to say the dialogue you hear in the headphones is in sync with what you are watching. Repeating myself there is NO LIP SYNC ISSUE ON iPAD.
These headphone can control the Play/Pause and volume up/down features on both iPad and Iphone. The track skip and fast forward/rewind aren't presently supported on Apple products however this is not the fault of the headphones. They do contain the technology but it is the iPad and iPhone bluetooth firmware that do not, so the headphones are not at fault and I am somewhat bemused how other people writing reviews on this product deduct points/marks/stars for this issue. All the features will be fully supported when Apple update their bluetooth firmware in a future update.
When your iPhone rings it will mute your music and you hear the ring tone in the headset and by pressing the large call answer button you can accept the call. The microphone on the earpiece is almost invisible and I was astonished at the quality of the call and so was the person on the other end of the phone. When you or the other person hangs up by pressing the large button on the headset your music resumes playing where you left off. Enough Said.
I imagined that the five control buttons on the right side of the headset would be over complicated and confusing to use however they are not.Read more ›
- To listen to mp3's on my Google G2 wired or wirelessly
- To listen to audio wirelessly on my Cowon Q5W
- To make and receive calls on my G2 both wirelessly and wired for when battery is low on either or both the headphones or my G2
- I am a fairly heavy user of headphones and needed something for an average of 3 hours use per day
Sound quality - I am really satisfied with the quality of audio when listening to mp3's. Obviously, I know that mp3 will not test the limit of the MM400's but suffice to say, they are, as you would hope, a huge improvement on the basic headphones supplied with my phone. It's great to hear basslines you didn't know existed!
Connection - This has been frustrating but I will lay this firmly at the feet of my G2 phone and NOT the MM400's. Often, I cannot get the phone to connect to the MM400's, like I said, I put this down the phone and not the headphones - For all you G2/Android users out there, the best way I find to get a connection is to switch phone Bluetooth ON, then switch MM400 Bluetooth on, then switch phone Bluetooth off (wait for phone to say disconnected) and then back on again!
I ran a quick test with an iPhone owning friend who was able to pair first time. But I would be very keen to hear how other iPhone users get on with connecting to the MM400's as I'm sure there are many more iPhones out there than Android phones.
Connecting the MM400's with my Cowon Q5W was successful every time.
I tested the range and call connection was not lost even at 10m. There was no noticable drop in quality over that distance either.
Usability - Once connected via Bluetooth the MM400's on-ear controls are easy to use.Read more ›
I would still recommend these for wireless freedom, but don't believe the hype surrounding them. They are NOT as great as people state.
The best feature for me is the amazing sound insulation, no need to bother with the more expensive noise cancelling model - background noise is significantly cut. Even when you turn them up loud, the music can not be heard by anyone around. I can now play my music loud on the train without bothering other passengers.
All the accessories are included, even the cables seem to be made of better quality materials than usual. The price is high but is justified considering the build quality.
Fit: I've had any number of headphones over the years -- mostly Sennheiser but not all. I've a pair of closed HD250s and I've had open headphones and stick-the-rubber-in-your-ear headphones and the MM 400s are the most comfortable I've known.
Wearability: walking around, you don't get that under-water effect of the rubber-plug style in-ear headphones, and wind-noise isn't exaggerated in the way those headphones do either. The MM 400s block out enough sound, but not so much that you feel completely cut off (you can tell when someone wants to talk to you for example -- a good thing).
Wireless: I'm surprised at how much more wearable these are because of the lack of wires. Nothing catches, nothing drags, nothing pulls the phones off your ears, and yet the headphones are the right weight (i.e. light).
The wired connection, on my Google Nexus One, sounds about the same as through the bluetooth connection. I suspect that (as with other low-power devices) the headphone amp in the phone isn't really high quality so there's probably some roll-off on the high frequencies -- but it doesn't sound muffled. When you're using the bluetooth connection you're bypassing that headphone amp in the phone, and the sound is about the same -- impressive.
I'm really surprised -- I wear these phones at work and at home now in preference to supposedly better wired ones.Read more ›
Most Recent Customer Reviews
I've had these headphones for over a year now. I use them with my iPhone on the train - life is a lot easier without wires getting tangled up in bag straps and various layers of... Read morePublished on 2 Nov. 2013 by Mr. D. Calder
A wonderful set of headphones & works beautifully with my mobile even my voice is crystal clear
This was given as a Christmas gift. So sorry this review is late. They arrived well packaged and on time. They were opened yesterday and the receiver was pleased. Read morePublished on 26 Dec. 2012 by Ajay
well worth buying, sets up easy enough. use them fo work all he time, ok I guess but dont block out loud noise from machines etc. seem water resistant as used them in heavy rain. Read morePublished on 25 Dec. 2012 by gtspider
I freed myself from wires and bought a pair of these about 18 months ago and feel compelled to review. Read morePublished on 18 Feb. 2012 by Benjamino
if you are looking to use this product as a wireless headphone with a classic i-pod then just dont bother!! Read morePublished on 1 Feb. 2012 by simpsonf
I am so, so disappointed with these. While the convenience box might be ticked, and the coolness of the wireless gadgetry is there for all to see, the one thing that lets these... Read morePublished on 21 Jan. 2012 by pmjb007
Quality product with great sound quality!
Can connect to both phone (as headset) and Spotify audio hifi streaming from PC (as stereo headphone). Read more