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Sennheiser Electronic corp. > 
Item#: 9SIA0AJ3430134

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Can you remember the last time you had a proper workout without any disturbances from your headphones falling out or giving up? The new Sennheiser/adidas MX 680 sports earphones will change that on the first listen. These sweat-proof, earbud phones deliver outstanding, high-energy stereo sound without the need for readjustment or the trash can.

The EarFin stability system provides a comfortable, secure fit that won't fall out during your workout. Further, the MX 680 is customizable for any size or shape ear. This will ensure long-term comfort without sacrificing support. A convenient volume adjuster keeps you in control of your tunes while a detachable extension cable lets you position your MP3 player where YOU want it.

The DuPont Kevlar reinforced cabling guarantees durability and flexibility where other sport headphones can't - even in cold temperatures. A sweat-proof, water-resistant construction lets you go your hardest during any off-season.

  • newegg Sennheiser/adidas Performance Engineered on legendary Sennheiser/adidas Performance, the Sennheiser MX680 sports headphones deliver the best of both worlds, producing energizing, high-output that keeps you running. Get great audio feedback of your workout with the Sennheiser MX680 and the Adidas miCoach. These headphones are also compatible with iPhone and all iPods/MP3 players with a 1/8" (3.5mm) plug.
  • newegg Secure Fit Revolutionary EarFin holding mechanism is comfortable and stable- eliminating "falling earbuds". Secure fit in-the-outer-ear stays put without using your hands.
  • newegg Rugged Construction DuPont Kevlar reinforced cables are ultra-durable and flexible even in cold temperatures. Sweat and water resistant construction suit for indoor and outdoor use during any season.
  • newegg Easy to Operate Conveniently and intuitively adjust the sound with built-in volume control. A detachable extension cable with clothing clip is included to enhance wearing comfort and flexibility and eliminate tangles.

Learn more about the Sennheiser Electronic corp. MX680

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 720 days
  • Limited Warranty period (labor): 720 days
  • Read full details

Customer Reviews of the Sennheiser Electronic corp. MX680

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  • Travis H.
  • 2/25/2015 8:43:28 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsJust OK

Pros: -Get the job done
-Stays in my ear
-fits decently

Cons: -Not extremely comfortable
-sounds are not the best

Other Thoughts: I like my $10 pair better

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  • Craig B.
  • 8/24/2013 4:02:49 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsDecent

Pros: Stays in ear during regular running. Sound is standard for ear buds.

Looks cool.

Inline volume control.

Break-away cable for arm mount music player works perfect for shortening up the cable.

Cons: The inline controls are clunky and heavy, but I wounldn't stay away just because of that.

Isn't in ear. Not really a con, but a design difference. Personally though, I think the more expensive in ear would've been much better.

Other Thoughts: Works as advertised. Good Build quality. I like Sennheiser.

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  • Samuel L.
  • 5/12/2013 12:49:49 AM
  • Ownership: 1 week to 1 month

4 out of 5 eggs

Pros: stylish, can get loud, adjustable cord length, volume control, interchangeable earpieces (rubber "hook" can be removed, which i did), cool carrying case

Cons: sound wasnt much better than apple headphones for ipod

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  • Mr. M.
  • 3/21/2013 2:25:32 AM
  • Ownership: 1 month to 1 year

1 out of 5 eggsworste headphones ever

Pros: pretty colors

Cons: everything

Other Thoughts: worste headphones ever
buds will never stay in your ear!
cord is too long to hold ontop MP3 player and too short to put in pocket.
Sound quality is not that good either.
I would rather have 4 pairs of cheap 10$ headphones than these

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  • James E.
  • 1/10/2013 2:00:51 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsAwesome...but

Pros: The pros:fits in ear, and the fin makes sure it won't come out of place. It might look a bit uncomfortable by the looks; however, you barely notice its even there. Sound quality is fine, and the clip was nice for when i was lifting weights.

Cons: There was only one con; however, this should be the deciding factor. I've gotten these headphones twice, and the exact same thing happened both times. The first time, the headphones worked for 2-3 months, then one ear went out, then the other. I admit I was a little rough with them, and loved them, so decided to by them again. I treated it like it was my baby, made sure that I wouldn't let it snag on anything. However, after around 4 months, one ear suddenly went out, and the next day the other side stopped working.

Other Thoughts: Loved the headphones but the longevity was horrid.

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

  • William D.
  • 1/9/2013 8:58:04 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsVery good Ear Buds

Pros: Very good sound and the fit snugly in the ears.

Cons: DHL shipping. Why did Newegg decide to switch to these people that do nothing but add two days to the delivery time. This is the third item that I have that shipped this way. I hope they change their mind on this shipper before the lose their reputation as a very quick shipper.

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

4 out of 5 eggsSweet Headphones

Pros: Great sounding ear buds, the volume control comes in handy. This was my first time purchasing this particular brand earbuds but I am glad that I did. I wasnt sure if spending the money on these would be worth it in the long run but I LOVE THESE THINGS!!
The sound from these ear buds is quite nice. Just enough bass and just enough trebble. The cord is long enough for me and I like the 90' angle for the headphone jack plug.

Cons: Only Con would be the earbud rubber ends, one is HUGe the rest are so so in size. I ended up going down to the smallest one for the best fit I'd like to see more pieces in the box for those of us with different size ear canals.

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  • Morgan S.
  • 8/23/2012 1:29:12 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsStays in ear

Pros: Stays in ears when running

Cons: Not long enough
Not very waterproof

Other Thoughts: Normal earbuds have a heck of a time staying in my ear when running, but these do really well. A couple of issues:
1) The heaphones themselves have a very short cable. This plugs into an extension with a volume switch that can clip onto your clothing. When I would clip the extension onto my shorts, the thing would bounce out of place in minutes, then pull the earbuds out of my ears. I ended up ditching the extension and buying an arm-strap to hold my iphone and the short headphone cable is perfect for that.
2) They survived a run through the washer and dryer, then failed when I wore them in the rain a month or so later. The left earbud crackles now. Still usable, but annoying.

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4 out of 5 eggsGreat headphones

Pros: These are great sounding earbuds. I have no issues with the earbuds at all. I have owned them for about 18 months now and the still work great. The noise isolation is awesome. I have worn them on the inside of a C-17 and listened to music. Shot a .50 machine gun and had still no trouble hearing my music. Also, the fins are great at staying in-ear. Running, and lifting weights I have had no trouble using them.

Cons: On the other hand the volume control has broken twice. The first did not last long at all. Then I actually found another one that someone had lost. Same thing happened with it. The female end of the volume control starts to give the headphones an underwater sound when it is even slightly touched. Even with the volume control broken you can just use them with a shorter cord. Even though it is very convenient I would just go with the MX680i

Other Thoughts: Great earbuds but the volume control needs to be a lot more durable.

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

  • Maksim M.
  • 5/20/2012 11:11:57 AM
  • Ownership: 1 month to 1 year

5 out of 5 eggsawesome earbuds!

Pros: Got the volume control. The cord is not too easy to rip. Great sound for earbuds! Yea it wont give you a perfect sound so dont compare it to professional equipment.

Cons: Rubber pieces on the earbuds tend to fall of quite easy (I wear them at work)

Other Thoughts: For the price they are definitely the best headphones I've owned. And I am on my second pair already.

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