Sports Bluetooth earphone with flat cable and controller. Comes with a pair of ear hooks and 3 sets of ear tips for multi fit comfort tailoring. Built-in rechargeable lithium battery for up to 4hrs play time. Latest Bluetooth 4.1. Light weight design for comfortable long-term wearing. Built-in microphone, volume, play/pause and answer/hang-up. Answer phone calls or play music with the multi-control button. Supplied with USB charging cable.