Avantree HT4189 40 Hrs Wireless Headphones for TV Watching w/Bluetooth Transmitter (Digital Optical Aux RCA Pc USB), Rechargeable Hearing Headset, Plug n Play, No Audio Delay, 100ft Wireless Range rand Avantree Color Brown Connections Wireless Series BTHT-4189-BLK Headphones Form Factor Over Ear About this item [Plug play wireless TV headphones transmitter Set] Just turn on the Bluetooth transmitter (Audikast) and the Bluetooth headphone (AS9S) - they will connect automatically, without needing to pair. [Wide compatibility] Compatible with 99% of TVs on the market, supports OPTICAL / AUX / RCA audio output. Also supports computer digital USB audio without needing additional cables. (NOTE: Audikast does NOT decode Dolby / DTS - only PCM) [Flexible use] Headphones (AS9S) can be used seperately with other Bluetooth transmitting devices, e.g. cellphone, PC, TV. Transmitter (Audikast) can be used seperately with any Bluetooth receiving devices, e.g. headphones, speakers. [No audio lag and dual link] Zero lip-sync delay - ideal for watching TV, movies, videos and gaming. Add a 2nd pair of headphones to share movies with your family. (Note: For no lip sync delay, your 2nd headphone must also support the FastStream codec.) [Up to 100 feet range] The Audikast's Bluetooth Class I technology transmits audio signals up to 100ft. Note: Operation range is affected by physical obstructions (walls, people), wireless interference (Wi-Fi routers) and also depends on receiving device.