The ClearSounds CLTVBT Listening System provides wireless connectivity to TV, audio devices, and cellular phones. Pair headset directly with any Bluetooth enabled device or plug Bluetooth transmitter into any non-Bluetooth device with a 3.5mm audio-out port for Bluetooth transmission with headset. Comfortable and adjustable headset with built-in Bluetooth technology Built-in microphone in headset enables 2-way communication with Bluetooth mobile phones Pairs with A2DP Bluetooth Devices - Enjoy hi-def music wirelessly 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 & Bluetooth mobile phone Eliminates background noise Rechargeable Lithium-Polymer battery - Recharges in 2.5 hours For use with: TV Portable audio devices Personal computers Mobile phones Operating range: Up to 33 ft Listening time: Up to 10 hours Talk time: Up to 11 hours One year warranty Use with Bluetooth Devices Pair headset directly with any Bluetooth enabled device for wireless listening/communication Use with NON-Bluetooth Devices Plug Bluetooth transmitter into 3.5 mm audio-out port Headset pairs with Bluetooth transmitter for wireless listening/communication