GTMedia Wireless 4-in-1 Bluetooth Transmitter Receiver AUX Optical Audio Adapter
Wireless 4-in-1 Bluetooth 5.1 Transmitter Receiver AUX USB Coaxial Audio Adapter. - Basic function: Bluetooth receiver(RX)/ Bluetooth transmitter(TX). It can be used in cars and also works with computers, TVs, older version speakers, etc.