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Sennheiser MX 85 3.5mm Connector Earbud Sport Earphone

  • 18Hz-21KHz
  • 3.5mm Connector
  • 3.9 feet Cord Length
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Learn more about the Sennheiser Electronic corp. MX 85


MX 85

General SPEC

Frequency Response
< 0.1%
Input Impedance
64 ohms
117dB S.P.L. at 1KHz
Ear Coupling
Cord Length
3.9 feet
0.32 oz.


Twist-to-fit system secures the earbud for consistent bass response

Requires no adjusting for a truly hands-free listening experience

Sennheiser Basswind System delivers powerful bass response

Powerful neodymium drivers for balanced, detailed sound reproduction

Engineered for exceptional durability and light weight

Sweat and water-resistant; washable under running water

Cable clip and carrying pouch included

Compatible with all 1/8" (3.5mm) stereo headphone jacks including all iPods and iPhone

Asymmetrical cable eliminates tangles and cable clutter

Transducer Principle: Dynamic

Quick Info

Customer Reviews of the Sennheiser Electronic corp. MX 85

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  • Sarah G.
  • 8/31/2009 3:09:05 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsNot for small ears.

Pros: Look nice.

Cons: If you have small ears, don't bother. Even with the small adapter on, the part that was supposed to "hook" underneath a fold in my ear was SO far beyond it that it was useless. I tried for 20 minutes to make it work, thinking maybe I was trying to twist the wrong way or something, but no. Just too big for little ears.

0 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 8/3/2009 10:03:41 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsGood idea...mediocre sound

Pros: Water resistant
Do not fall out easily
Asymmetrical cable for putting right earbud cord behind neck
Includes carrying case
Lots of fittings for a custom fit

Cons: The cord is too long
Sound quality isn't impressive
Become painful after wearing for 10 minutes

Other Thoughts: I was looking for some earbuds to take to the gym. I have a Sansa Clip and the earbuds that came with it fall out easily. The Sansa earbuds sound excellent. The Sennheiser earbuds do not.

You have to find that certain sweet spot for these to sound decent. For me that sweet spot wasn't comfortable. Maybe others will have better luck finding a comfortable fit.

Unlike many others, I prefer the asymmetrical design. The cord doesn't get in the way while in use.

I decided to RMA these for the fit and sound quality.

1 out of 1 people found this review helpful. Did you? Yes No

  • Joseph O.
  • 7/21/2009 8:09:18 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

4 out of 5 eggsWont Budge

Pros: They are the best sports earbuds i have ever owned, these earbuds combined with a ipod shuffle and i was able to do any excercise without once having them fall out of my ears, ultimate test i can even pole vault with them on and they just wont budge, i have had a pair for 3 years now and finally have to replace them because they are shorting. people say the sound qaulity isnt the best, its average but keep things in perspective these are not made to be sound cancelling studio quality earphones.

Cons: the cord is extremely long, and the cord for the right ear is significantly longer then the left, ill admit cords would get unbearably in the way and having them get caught on something would be the only way the earbuds would get tugged out. i also had problems with rubber comfort pieces falling off the earbuds.

Other Thoughts: i simply superglued the rubber comfort peices that felt best, they havnt budged since, i also just looped and tie wrapped the slack of the cord and it doesnt get in the way any more.

also aparently not everyones ear is made the same way, if you dont have a pocket on the top of your outer ear then the earbuds wont have antyhing to lock onto

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  • Thomas B.
  • 7/16/2009 5:03:44 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day

4 out of 5 eggs

Pros: Once you get use to them and play with the sizing they work great. Had a pair of the MX-75 that lasted 2-3 years used in daily workouts

Cons: The cord is odd in that one ear piece is longer that the other. You have to clip it to the collar on the shorter side and this seems to work. WOuld be nice to know the engineering behind this design.

Other Thoughts: NewEgg states free shipping but then at the last minute says its not offered for my address. I only ordered them because of the free shipping, but then found out late in the order that it wasn't. Ships within a day isn't exactly the truth either. Disappointed from this perspective.

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  • Beracah Y.
  • 7/10/2009 12:09:14 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggs"Ok"

Pros: They do stay in your ears pretty well.
Sound response does seem pretty flat/neutral

Cons: - quality didn't give me chills
- The sound quality and low end response is highly position dependent. If it is tilted slightly in your ear, the quality is on the low side of average. But the best quality position might not be the most comfortable
- the quality gets a *lot* better at higher volumes, but is so loud it makes you deaf. I have to keep the vol pretty low. Sometimes feels a little bit muddy.
- the highs aren't super crisp
- the lows are "ok". hard to put my finger on. some songs sound full and rich, others are kinda flat.

Other Thoughts: I bought these to replace my (broken) earbud headphones on my nokia 5800, which gave me chills when I first heard the music. since they were sennheiser, I expected to be seriously wowed. I wasn't. its "ok". I don't think it's really worth the money I paid.

Also I noticed the quality gets a lot better when my ears were cleaned, which helped a lot, but not enough to give 4 stars.

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  • Christopher J.
  • 7/10/2009 8:54:58 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsFinally, ones that fit!

Pros: Got these in the other day, and I have to say that this is the first pair of in-ear headphones that actually will stay in my head while I do something other than sit still. The sound is good, with the bass solid and the highs not breaking up or sounding tinny even when listening to violin based classical music.

Cons: The cord is orange... oh so very bright orange. Also the left earbuds cord is a wee bit short, so I have to clip the lead a little close to my neck.

Other Thoughts: Other than those minor issues, they've been great so far.

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  • Bill C.
  • 7/9/2009 7:56:43 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

3 out of 5 eggsProblematic

Pros: Really does stay in your ears when nothing else will.

Cons: 1) Sweat clogs the speaker 30 minutes into my workout, removing volume and base, but they are fine the next day after they dry. (The sweat can't be shaken out immediately)

2) Cord is ridiculously prone to tangling because it is designed to be rolled into a container. After almost a year, it's still like a slinky and needs almost a full minute to untangle each day.

3) Developed a short after 10 months and had to be thrown away.

Other Thoughts: Sound is fine, nothing special. Better than a dollar store pair, not as good as Bose, but at least they stay in.

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  • Dave C.
  • 5/18/2009 11:56:45 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsBest Workout Headphones on the Market

Pros: Run for miles without worrying about your headphones falling out of your ears! Just turn the ear buds until they're wedged inside you ear and they won't fall out. The clip keeps the cord from bouncing around and pulling your headphones out too. Positively recommend these to anyone who is sick of their headphones falling out of their ears.

Cons: None, when considering the benefits and the cost.

Other Thoughts: I will never buy a different kind of headphones for working out or running! I love these headphones.
Sennheiser NAILED IT!

1 out of 1 people found this review helpful. Did you? Yes No

  • ryan g.
  • 1/21/2009 7:51:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsi like em

Pros: They have amazing sound quality. The cord going behind the back is pretty convenient.

Cons: They're kinda uncomfortable but i'm sure that after a week of wearing them i'll get used to them.

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  • Anonymous
  • 1/14/2009 5:05:42 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

2 out of 5 eggsgreat at first then a mess

Pros: Sound good. Comfortable. Sweat resistant.

Cons: The cords and rubber pieces are a nightmare. I am amazed at just how tangled the cords get. If you throw them in your pocket or even on the table you'll spend a few minutes untangling them. The orange rubber "cam lock" things are removable and interchangeable with other sizes. After a couple weeks now they are popping off all the time. I have lost them countless times in my pocket or falling to the floor when putting them in my ears. The rubber that covers the bud itself is also removable and interchangeable with other included sizes and have started to fall off.

0 out of 2 people found this review helpful. Did you? Yes No

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