Fuel your performance: CSR chip, solid Bluetooth Connection, high-fidelity sound that immerses you in every detail of a song, the headphones deliver inspiration in the form of amazing audio IPX7 waterproof design for Sport: internal Nano-coating protects the headphones from heavy rains or sweat throughout your most rigorous workout; whatever your sport, these sports earphones keep up with your pace One button, hands free: you can leave your phone where it is and control music and calls with just a press of the button on headphones; CVC 6. 0 noise cancellation microphone makes calls clear and stable All-day power: up to 10 hours Talk Time/audio play time to keep you rocking from a morning gym session all the way through a full dayƒ??s work Lightweight and stable fit: the headphones are small, lightweight and stay snugly in your ears for a discreet and comfortable listening experience even when you are doing intense exercise