Innovative EarFin Design

Engineered on legendary Sennheiser/adidas Performance, the exclusive EarFin provides a comfortable, secure fit that won't fall out during your workout. Further, the CX 680 can be adapted to fit any ear using the supplied fit kit. This will ensure long-term comfort and exceptional isolation to enhance sound quality and concentration. A convenient volume adjuster keeps you in control of your tunes while a detachable extension cable lets you position your MP3 player where you want it.

Kevlar-Reinforced Cable

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 CX 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.

What's in the Box?

Sennheiser CX 680 headphones, 3 pairs of ear adapters (S/M/L), 3 pairs of EarFin adapters (S/M/L), 1 pair of housing covers, 1 pair of diaphragm guards, cleaning tool, extension cable with volume control, storage pouch, cable clip, instruction manual, warranty.