[Bluetooth transmitter and recipient:] 3.5 mm Bluetooth transmitter supports Bluetooth transmission and purchase, including TX and RX modes. The RX mode supports the use of two devices such as stereo and home stereo at the same time, while the TX mode supports the operation of a device such as a PC at the same time. .[ Bluetooth 5.3 - faster and faster:] This wireless 5.3 USB Bluetooth adapter provides a stable connection of 10 meters and provides a clear, practical and pleasant sound (Note: Telephone conversations are supported only in RX mode, not supported in TX mode). .[ Wide compatibility:] This 3.5 mm vehicle Bluetooth USB adapter is compatible with devices with an interface of 3.5 mm and USB. RX mode can be used for stereo, home stereo, sound music stream sound systems, amphitheater, speakers and headphones, while TX mode can be used for PCs, desktop computers, mp3, mp4, switches and more. .[ Plug and Run:] The Bluetooth USB adapter suitable for cars is 1 in 1, does not require the installation of drivers for compatible devices. .[ Ultra compact and portable] You can put it in your pocket or bag with ultra compact and small light design, you can easily carry this Bluetooth audio adapter. Make sure that when connecting a TV, make sure that the auxiliary cable is ly installed in the 'sound output' and replace the TV's audio settings from 'TV speakers' to 'sound output'. . It provides a year warranty for you to feel the ravage. To easily eliminate and change the fault or to understand any problem with purchasing, please our customer team at any time.