4.375 1 5 0

The Sennheiser CX 680s are a pair of mid-priced earbud headphones.

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highs are clear and crips without getting harsh or tinny

1 agrees

comes with black and lime green earbuds, will match your personal sense of style

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stay in your ears well enough to be worn during workouts

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good clarity and detail throughout the mids

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bass is clean, rich and deep - very good rendering

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very light weight construction, generally don't notice them as you move around

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fit comfortably out of the box for most people, but other buds are included if you need them

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  • Only 3 words are allowed.

cord is a little short, need to be aware of where your MP3 player is going to be kept as you move around

1 agrees
  • Only 3 words are allowed.


The Sennheiser CX 680s are a pair of mid-priced earbud headphones. These headphones are specifically designed for use during workouts. To make these headphones ideal for the active lifestyle, Sennheiser has teamed up with adidas in designing them. Features of the CX 680s that play to athletes include sweat/water resistance and the ability to block out up to 20dB of outside noise (which is handy for loud environments like the gym). The included fit kit works in tandem with the EarFin holding system to offer a solid, comfortable fit suited to your particular ear size. The fit kit and EarFin system are both adjustable to small, medium and large sizes. The 1.97 foot cable and detachable 1.97 foot extension cable (both Kevlar reinforced) allow you to keep your MP3 player in the most convenient place possible, without worrying about your cable slack running out. The Sennheiser CX 680 headphones come with a two year warranty. 

  • Two year warranty
  • Sweat/water-resistant 
  • EarFin holding system
  • Fit kit (for size adjustment)
  • Volume adjuster
  • Kevlar reinforced cabling
  • Up to 20dB sound blocking
  • High-output sound
  • 1.97ft. cable (w/ detachable 1.97ft. extension cable)
  • Compatibility: miCoach, iPhone, all iPods/MP3s w/ 1/8" headphone jack
  • 3 pairs of ear adapters (S/M/L)
  • 3 pairs of EarFin adapters (S/M/L)
  • Housing covers
  • Diaphragm guards
  • Cleaning tool
  • Storage pouch 
  • Cable clip
  • Instruction manual
  • Weight: 0.35oz.
  • 1/8" cable end 
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