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The Sennheiser OMX 680i is a mid-cost set of sports headphones.

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fully adjustable ear hooks, will fit any ear, bends to any shape you need

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very light construction and excellent comfort, easy to forget you're wearing them

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well constructed with quality materials

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volume control is handy and responsive, easy to work with

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maximum volume is above average, makes the most of a portable MP3 player's signal

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stays securely on your ears, great for running

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sound is decent, can get good clarity through the full range

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some people have a hard time figuring out how to get them adjusted properly, tend to fall off

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The Sennheiser OMX 680i is a mid-cost set of sports headphones. These headphones have an around-the-ear design, which is what differentiates them from the identically priced in-ear MX 680i and around-the-head PMX 680i models. All three models in this product line are compatible with the iPod and iPhone. You can play the tunes from your device while you work out or go for a run, and the integrated mic allows you to take calls. Whatever you are using these headphones for, the driver is designed to produce clear frequencies, with a smooth bass. The acoustically open design of the earpieces allows you to hear what is going on in your surroundings. To help ensure reliability, the Sennheiser OMX 680i headphones have a Dupont Kevlar reinforced cable.

  • Frequency response (headphones): 18 - 20,000 Hz
  • Total harmonic distortion:
  • Sound pressure level: (SPL) 118 dB
  • Impedance: 16 Ω
  • Jack plug: 3.5 mm, straight
  • Cable length: 1.2 m
  • Frequency response (microphone) 100 - 10,000 Hz
  • Omni-directional microphone
  • Microphone sensitivity: -44dBV/Pa
  • Weight: 18 grams
  • 2 year warranty
  • 1 pair of foam ear pads
  • 2 pairs of ear sleeves(size S and L)
  • 2 pairs of air cushion adapters(size S and L)
  • Cable clip
  • Storage pouch
  • Instruction manual
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