Enjoy your music while on the go. In-line microphone with answer and end call button enables a smooth transition between audio playback and telephone use. In-line volume control allows you to adjust your music without ever touching your mobile device. Adjustable, secure-fit ear hooks for lightweight comfort and stability. Reinforced design for sweat & water resistance during tough workouts or running. Over the ear design allows the earbuds to stay put during the most strenuous exercising. Inclined in-ear earbuds allows for long time wear with little stress on your ears. Built-in lithium battery can be charged with the included micro USB cable (85mAh). Operating distance: 30'. Driver: í10mm. Impedance: 30?. Maximum power input: 6mW. Max Power Output: 8mW. Sensitivity: 110 dB. Speaker diameter: è9mm. Frequency response: 20Hz-20KHz. Charging time: 1.5 hours. Playback time: 6 hours. 19.5" cord length. EVA Molded Case included. EVA Case Dimensions: 3.54L 1.26"H 3.54"W)