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Sennheiser adidas PMX 680i

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MSRP $69.95
This product is no longer available at HeadRoom.

Amongst the best-built and best-sounding neckband headphones, the Sennheiser PMX 680i are tightly co-branded with adidas for sporty looks and maximum durability even in the toughest environs. Perfect for jogging, ideal for taking to the woods or cross-country hiking and easily withstands beach, sand and desert action too. Built-in microphone and Apple 3-button controller on cord for iPhone or iPad. Reflective yellow/black color scheme adds welcome nightime visibility.

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Product Features:

  • 3-button Apple player controller + mic for iPhone chat
  • Tough build for exercise, gym and heavy-duty use
  • Reflective striping adds welcome nightime outdoor visibility
  • Free 2-year Sennheiser 'repair or replace' manufacturer's warranty

What's In The Box:

  • Sennheiser storage/travel soft pouch
  • Smartphone adapter extension cord with built-in mic
  • Silicone eartips
  • Cord shirt clip
  • Sennheiser 2-year owner's warranty statement


The Sennheiser PMX 680i neckband headphones feature a  vertical transducer system that provides a comfortable, secure fit that won't fall out or come loose during your intense workouts. Further, the PMX 680i has 3-button Apple controller and microphone on cord for easy telecommunications, so you won't miss that critical call regardless of where your workouts take you. Sweet 'universal-fit' neckband assembly fits quite well on any size or shaped head and the neckband holding mechanism is comfortable and extremely stable, eliminating those pesky "falling earbuds" of yore. These cool PMX 680i features ensure terrific long-term comfort without sacrificing wearing stability or impacting the overall sound quality. A convenient volume adjuster also located on the 3-button cord housing keeps you in control of your tunes while a detachable extension cable lets you position your MP3 player exactly where YOU want it. The DuPont Kevlar reinforced cabling guarantees durability and flexibility where other sport headphones can't - - even in our extra-cold Montana temperatures. The sweat-proof & water-resistant construction lets you go your hardest during difficult shoulder seasons when conditions may not be perfect but you still need some killer tunes to power through your heaviest workout.

The Sennheiser PMX 680i package includes set of ear pads, travel/storage pouch and shirt clip for minimizing any dangling cord slack. The strong manufacturer's 2-year warranty remains in effect ONLY with proof-of-purchase from a verified and authorized Sennheser dealer  -- like HeadRoom!


  • Connector Type: 1/8
  • Isolation: -5dB ~ 10dB
  • Impedance @ 1kHz: 32 Ohms
  • Detachable Cable: No
  • Cord Length: 4ft
  • Cord Type: Straight Left-Side
  • Ear Coupler Type: Earbud
  • Driver Type: Dynamic
  • Headphone Type: Behind the Neck
  • Manufacturer Warranty: 2 years
  • Microphone: Yes

Reviews At A Glance
2 Reviews

Average Rating 
(Showing 2 of 2 reviews)

Not bad, not great
Posted by sugemallen from Denmark on 2011-10-24

Recommend Product: Yes
Pros: Good sound, comfortable
Cons: Doesnt like sweat

When they get moist/sweaty, they fail to play reasonable...
Thats was one of the primary reasons for bying these....
The others were the one cord solution and the neckband which works ok...

I have had these for ~1year now and the cord malfunctioned...

Sound Quality
Look & Feel

15 out of 18 people found this review helpful. Did you?

good headphones, BUT!!!!!!!!!!
Posted by extreme athlete from middle east on 2011-04-30

Recommend Product: No
Pros: great sound, fits good
Cons: cant handle to much sweat, tends to pop out of ears when back of head is flat

great pair of headphones sounds great I thought they were the best headphones I purchased so far. until they started to malfunction when they got wet from sweat when the ear phones start to get wet from sweat the volume decreases in that ear after 2 weeks of working out one ear started to play real low and the voice activation started to turn my voice activation on my ipod on without me doing anything. Bottom line they are not sweat proof!

Sound Quality
Look & Feel

47 out of 50 people found this review helpful. Did you?

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