Sennheiser CX 685 Adidas Sports In-Ear Headphones

The CX 685 is part of the Sennheiser / adidas range of sports headphones. The range was developed and designed with professional athletes and offers improved fit, comfort and acoustics for even the toughest workouts. The CX 685 delivers natural sound and an acoustically closed design. The robust, water-resistant construction features para-aramid reinforced cables, strain relief parts and a retention mechanism to ensure a perfect fit.