Incredible Sound: Enjoy amazing crystal clear sound. Efficient low-power chip design and digital signal deliver fantastic sound with deep bass. SPDIF optical connection, digital music can be accompanied by better sound quality. Up to 50 m. Extended reception range allows the headset to be used when the transmitter is not visible. Decoding restores the true sounds. MODERN AND COMFORTABLE DESIGN: Soft padded headphones and feature a transmitter that doubles as a charging station. Rechargeable Batteries: The included rechargeable Li-ion batteries last approximately 18 hours on a full charge and automatically recharge when you place the headset in the base station. No Delay: With 2.4 GHz wireless technology, our headphones allow you to watch your sports competition or your favorite TV or play your game. It is compatible with all devices with an optical, 3.5mm AUX or RCA audio output. Headphones with 2.4G digital RF transmitter, Hi-Fi On-Ear wireless headset with RCA/3.5mm/optical port, for watching computer TV at home