Sennheiser CX Sport Bluetooth Sports Headphone

[Sennheiser proprietary transducers designed and engineered in Germany deliver balanced and detailed sound with dynamic bass capability Sweat and splash resistant designed to compliment your workout activities. 6 hour battery life from a 1.5 hours charge. A 10-minute quick charge provides an additional 1 hour of battery life making sure the CX SPORT is ready to work out when you are.]