In-line microphone with answer and end call button, also allows you to adjust your music without touching your mobile device. Adjustable, secure-fit ear hooks. Reinforced design for sweat & water resistance. Over the ear design allows the earbuds to stay put Built-in lithium battery can be charged with included micro USB cable (85mAh). Operating distance: 30'. Charging time: 1.5 hours. Playback time: 6 hours. 19.5" cord length. EVA Molded Case included.