Bluetooth Transmitter Receiver 50 Stereo One-key Switching Plug and play, stable transmission without interference, solves the problem that the TV cannot be connected to the Bluetooth headset, and no longer has to worry about affecting the rest and study of the family when watching TV. when using it on a computer. No audio cable, no driver plug and play (only audio can not transmit data). Plug the bluetooth transmitter into the usb port of the computer. Switch to transmit mode (TX), the red light flashes, the Bluetooth speaker or Bluetooth headset is turned on at the same time, and it is automatically paired. After successful pairing, the red light will be on. 1. Insert one end of the audio cable into the audio output port of the TV, and the other end into the audio interface of the transmitter. 2. Insert the transmitter into the USB (mobile phone charger) and confirm that it is in TX mode (the red light is flashing). The transmitter will automatically search for Bluetooth headsets or Bluetooth speakers for pairing. It only supports TVs with 3.5mm output and red and white hole output.