Wireless TV numbers. Wide compatibility, these wireless TV headphones are universally compatible and operate on all televisions with optical audio output port RCA, AUX on the market (not compatible with HDMI audio output). Not only are wireless TV headphones, but they also support 0.138 in cable connection, which is compatible with all 0.138 in interface devices (the 0.138 in audio cable is not included in the package). With it, you can listen to your favorite TV shows to your own volume. Plug and play, easy to load, no need to match, simply connect the transmitter base to the audio output port of your television, turn on everything and quickly connect with each other. The base is not only the transmitter, but also the charger. Battery duration up to 10 hours per full charge (3 hours), use the USB adapter provided by us to connect the base with the power wall socket while using the headphones, do not use the USB port of other devices directly. We are Physical Shop, Multicenter Local Sabana 15 and 16 2nd Floor