Product Description

The new Sennheiser PMX 680 sports earphones will change that on the first listen. These sweat-proof， neckband phones deliver outstanding， high-energy stereo sound without the need for readjustment or the trash can.

Innovative Neckband Design
Engineered on legendary Sennheiser/adidas Performance， the incredible neckband holding mechanism is comfortable and stable-eliminating the problem of earbuds falling out of your ears. The secure neckband fit works with any size or shape head， and includes a detachable extension cable with clothing clip to enhance wearing comfort and eliminate tangles.

The neckband vertical transducer system provides a comfortable， secure fit that won't fall out during your workout. Further， the PMX 680 has a universal fit for any size or shaped head to ensure long-term comfort without sacrificing stability. A convenient in-line 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.

Compatible with Portable Exercise Devices
The Sennheiser PMX 680 headphones are compatible with adidas miCoach， iPhone， and all iPods/MP3 players with a 1/8" (3.5mm) plug. The energizing， high-output sound keeps you running and ahead of the game.

Feature

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing， basic cleaning， inspection， and repackaging. The resulting product includes all relevant accessories， comes with a minimum 90-day warranty， and may arrive in a generic box. Only sellers who meet a high performance bar may offer Certified Refurbished products on Amazon.com
Sweat and water resistant
Neckband headphones for comfortable fit
High-output drivers for energizing sound
DuPont Kevlar-reinforced cable for unmatched sound
Item model num : PMX680