ClearSounds Bluetooth TV and audio listening system Remarkably comfortable and adjustable headset Embedded microphone in headset allows for use with Bluetooth enabled mobile phones Enjoy stereo high def music wirelessly pairs with A2DP Bluetooth devices Supports remote control of play/pause, previous/next track, volume up/down Pause music and playback automatically when receiving an incoming call Call transfer between headset and Bluetooth mobile phone 33 Foot operating distance Rechargeable 230mAh Li polymer battery TV/Music listening time up to 10 hours Talk time up to 11 hours Standby time up to 250 hours Charging time about 2.5 hours Charge input voltage DC 5V compatible with Plasma and LCD flatscreen TV'sCLSCSCSTVBT