Sennheiser and adidas worked together to create these lightweight, sporty headphones to help your workouts go more smoothly. Sennheiser's high-quality drivers produce clear sound with high-energy bass, and are housed in moisture-resistant earbud casings. The exclusive "EarFin" design keeps the earbuds comfortably and securely in place just inside your ear, even during a hard workout.
The MX 680s come with a range of ear sleeves and EarFin adapters to help ensure a comfortable fit. A control dial built into the headphone cord lets you adjust the volume of your tunes without having to fumble with your player. And a cable clip keeps the cord out of your way, while the carrying pouch stores your earbuds until your next workout.