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Sennheiser/adidas® MX 680

In-ear sports headphones with in-line volume control

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  • Sennheiser/adidas® MX 680

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Item #: 143MX680
 

Review Summary

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Our take on the Sennheiser/adidas® MX 680

by Kristen Schaub
Sennheiser

Sennheiser and adidas worked together to create these lightweight, sporty headphones to help your workouts go more smoothly. Sennheiser's high-quality drivers produce clear sound with high-energy bass, and are housed in moisture-resistant earbud casings. The exclusive "EarFin" design keeps the earbuds comfortably and securely in place just inside your ear, even during a hard workout.

The MX 680s come with a range of ear sleeves and EarFin adapters to help ensure a comfortable fit. A control dial built into the headphone cord lets you adjust the volume of your tunes without having to fumble with your player. And a cable clip keeps the cord out of your way, while the carrying pouch stores your earbuds until your next workout.

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Highlights:

  • moisture-resistant construction
  • EarFin design holds the earbuds in place just inside the ear
  • includes multiple earbud sleeves and EarFin adapters for a comfortable fit
  • in-line volume control
  • frequency response: 18-20,000 Hz
  • impedance: 16 ohms
  • 2-foot Kevlar®-reinforced cable with right-angle stereo mini plug, plus 2-foot extension cable
  • compatible with adidas miCoach, iPhone®, and all iPods® and MP3 players with a headphone minijack
  • includes carrying pouch and clothing clip
  • weight: 0.42 oz.
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Fit Style
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In-ear
Earcup Type
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Closed
Noise-canceling
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No
Bluetooth
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No
Frequency Response
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18-20k Hz
Sensitivity
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118 dB
Impedance
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16 Ohms
Weight
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0.42 ounces
Cord Length
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24"
Airline Adapter Included
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No
iPod Control
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No
Volume Control
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Yes
Built-in Microphone
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No
Parts Warranty
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2 Years
Labor Warranty
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2 Years
Product Research
What's in the box?

Download owner's manual

  • In-ear headphones (with attached 24" cable terminated by a 3.5mm connector) In-line volume control (with attached 24" cable terminated by a right-angle 3.5mm connector)
  • 1 Pair of foam ear-pads
  • 4 Pair of silicone ear-tips (S/M/L/XL)
  • 3 Pair of silicone ear-hooks (S/M/L)
  • 1 Pair of silicone housing-rings
  • Shirt-clip
  • Storage pouch
  • Instruction Manual (Eng/Fre/Spa)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Sports Design: The Sennheiser Adidas MX680 sweat-proof, in-ear headphones deliver outstanding, high-energy stereo sound during your workout.

Sweat & Water Resistant: The MX680 headphones utilize sweat-proof, water-resistant construction for indoor and outdoor use during any season.

Earfin Stability: The EarFin stability system provides a comfortable, secure fit that won't fall out during your workout.

Interchangeable Ear-tips: The MX680 sports headphones come supplied with 4 pair of ear-tips (S/M/L/XL) to fit your ear. These silicone ear-tips provide a secure fit in-the-outer-ear that stays put without using your hands.

Kevlar Reinforced Cable: The DuPont Kevlar reinforced cable guarantees durability and flexibility, even in cold temperatures. The headphone cable features a gold-plated, right-angle 3.5mm connector.

In-Line Volume Control: The Sennheiser MX680 sports headphones feature an in-line volume control to adjust the level of your music on the go.

 
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Sennheiser/adidas® MX 680 Reviews

Average Customer Review:

4 people say:

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1 out of 5

Abominable

Written By maryte, Austin, TX on Wednesday, May 16, 2012
Crutchfield Customer Review (What's this?)
 
These are horrifying. I got them to use with my iPod while working out in the gym (elliptical, recumbent, treadmill) and 1) I cannot fit them in my ears (regardless of the cushion size used) without them falling out and 2) they are so large and hard that they cause distressing pain - and this has nothing to do with the volume of the music I play! The sound is probably adequate, but I can't really tell because they fit so badly. Worst money I have ever spent on headphones.
Pros:
None that I'm aware of
Cons:
Poor fit, painful design
1 out of 2 people found this helpful
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"Coolness Factor"
Build Quality
Comfort
Noise Reduction
Sound Quality
 
5 out of 5

Sennheiser/adidas® MX 680

Written By sara, La Marque, TX on Tuesday, March 06, 2012
Crutchfield Customer Review (What's this?)
 
great sound, very comfortable, works with all my sound systems
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4 out of 5

Sennheiser/adidas® MX 680

Written By MarkY, Stafford, VA on Thursday, May 05, 2011
Crutchfield Customer Review (What's this?)
 
Good sound quality. The variable earpieces take some fiddling with to find the
right combination. My only real complaint would be that the main cord is too
short. The extension with the volume control is too heavy, it causes the
earpieces to become dislodged during a run. The clips aren't of much use in
this area. I had to unplug the extension and clip my iPod shuffle to my collar
during a recent 5K. Would prefer a lighter extension maybe without the volume
control. Really like the sweat resistance of the earpieces - that's been an
issue with other ear-buds. Overall, I'm satisfied. Good value and with a spiffy
yellow color too!
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4 out of 5

Sennheiser/adidas® MX 680

Written By john, nyc on Thursday, March 03, 2011
Crutchfield Customer Review (What's this?)
 
great headphones for working out,good sound
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For a more in-depth review and enhanced detailed information on the Sennheiser/adidas® MX 680, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_143MX680/Sennheiser-adidas-MX-680.html ).