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Sennheiser MM 100 Bluetooth

Your Price: $149.95
MSRP $149.95 No Sales Tax
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Give your smartphone the sound it needs with the active-use 'neckband' Sennheiser MM100 Bluetooth headset. Excellent microphone sensitivity with off-axis noise-rejection ensures clear telecommunication and the lightweight 'behind the head' fit is ideal for sports, mobile listening, and fast-moving through the concrete jungle. Wearing comfort and wireless convenience meets a true 'open-back' dynamic headphone. 10 meter Bluetooth range.

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Product Features:

  • 10 meter wireless Bluetooth range
  • 7.5hr play-time / 2.5hr charging time
  • A2DP / AVRCP hands-free headset compatible
  • Lighweight stable 'behind the head' construction
  • Excellent call clarity from noise-rejecting microphone
  • Free 2-year manufacturer's warranty

What's In The Box:

  • USB charging cable
  • USB wall charger
  • User's manual


The Sennheiser MM 100 Bluetooth stereo headset lets you enjoy your music and confidently never miss a call, all via your multimedia-capable mobile smartphone or Apple iPhone. The MM 100 is a direct route to top-performing Sennheiser Bluetooth wireless sound quality for listening to music or holding cystal-clear telephone conversations. The lightweight neckband 'behind-the-head' style is stable for active users and is also perfect for evening walks, stomping the city, or just relaxing in the park without getting all tangled up in blue due to unruly cords. The open-back earpiece construction provides incredible acoustic detail and sound imaging worthy of many high-end "audiophile" headphones; the open-back build also keeps you in tune with the ambient environment and allows you to hear what's going on around you, a critical plus if jamming large on busy city streets. The built-in Sennheiser MM100 microphone offers superb 'canceling' of most off-axis ambient noise so your voice clarity will remain crystal clear even in the noisiest settings.

The Sennheiser MM100 Bluetooth 'neckband' headphones are very 'light feeling' on the head and offer excellent long-term wearing comfort. The MM100 provides convenient on-board controls for adjusting volume and skipping forward/back in your playlist (on devices supporting the AVRCP profile). All controls are discretely imbedded into the earpieces yet the MM100 remains easy-to-use without having to take the headset off, plus the answer/end button lets you take a hands-free telephone call anytime. A convenient USB charger and with wall adapter charger is handily supplied in the Sennheiser box. The free 2-year manufacturer's warranty coverage is standard ONLY when proof-purchased with your receipt from verified Sennheiser-authorized dealers -- like HeadRoom!


  • Acoustic Seal: Open
  • Microphone: Yes
  • Bluetooth: Yes
  • Driver Type: Dynamic
  • Noise Cancelling: No
  • Manufacturer Warranty: 2 Years
  • Headphone Type: Behind the Neck
  • Detachable Cable: Yes
  • Coupler Size: Medium
  • Ear Coupler Type: Earpad
  • Wireless: Yes

Reviews At A Glance
1 Reviews
1 Reviews

Average Rating 
(Showing 2 of 2 reviews)

Great Sound, Awful Mic
Posted by C10 from Hyattsville, Md on 2012-09-13

Recommend Product: No
Pros: Sound Quality Is EXELENT
Cons: Very poor Phone funtion.

When listening to music, the experience is like WOW!
But once a call comes in the sound drops to about 25 and there is so much feed back that it drops the quality of these headphones to almost a 1.
Bluetooth headphones NO! (You cant hear anything on the phone with these things, and the person on the other side of the phone can't hear you either but you will both have one thing in common, a lot of noise and frustration)
Bluetooth speakers Yes!
So if you need blue-tooth headphones for phone usage, don't buy them.
On the other hand if You want to hear MUSIC like never before on a bluetooth headset You will be satisfied, other than the price of course. These are not worth more than $60.

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13 out of 13 people found this review helpful. Did you?

Okay, NOT noise canceling!
Posted by Methos from New England on 2010-05-27

Recommend Product: No
Pros: Decent sound, comfortable
Cons: Price, not NC as advertised

Just received these from HeadRoom the other day. I bought these because I was looking for a nice set of decent sounding bluetooth, behind-the-neck headphones for work and play. I prefer the comfort of behind-the-neck and joy of bluetooth for cable-free and the ability to utilize cell phone functions (play, talk, volume, next, previous, etc.) The bluetooth headphones I've tried have been a disappointment, even the high-end ones. Whereas these were Sennheiser I had high hopes. There was an added bonus in that, according to HeadRoom at least, these phones have some active noise canceling to them. I've been playing around with the NC headphones for work and find them great as I have some constant ventilation that is pretty loud and annoying. Also a co-worker that also likes to blather on. So some headphones with NC would be good too.

I purchased these from HeadRoom and they were good to deal with so far. Order was easy and shipping was free. And while shipping is free it took a long time to for them to arrive. In today's day and age of fast shipping, this was not fast. But hey, it's free.

Anyway, the phones arrived finally and everything looked good. Except as I read the manual there was no mention anywhere of any NC capabilities. I went to the Sennheiser website and there is nothing there about these headphones being NC. That's because they are NOT noise canceling. Okay, let's move beyond that. They are definitely decent sounding bluetooth headphones. They work as advertised (minus the NC of course) and the are very comfortable. In the end though they just were not good enough at the price point of $150. Had they had the NC and it worked even a little, then maybe. But I think I'm going to send these back for refund and continue on my search for something I like for work.

So if you are looking for a good bluetooth behind-the-neck headphones with above average (for bluetooth) sound quality, and the $150 price point is good for you then go for it. But just beware of the claim of NC. There is none. I have emailed HeadRoom and I would expect them to fix this claim on the website soon.


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120 out of 136 people found this review helpful. Did you?

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