1. The Bluetooth adapter can be used to connect Bluetooth speakers or headphones to your existing TV, so that you can enjoy the wireless freedom of Bluetooth or stream all your favorite music from any cellphone, tablet, laptop or desktop to your favorite car/home . 2. With the latest V5.3 technology, This Wireless 5.3 USB Bluetooth Adapter offers a quick connection and up to 5m working range, delivering clear, functional, and enjoyable sound. Backward compatible for Bluetooth 5.0/4.2/4.0/3.0/2.0. 3. WiTH Low Latency technologies, bluetooth transmitter for can eliminates audio delay, whether you are playing or watching , you'll experience high quality sound without audio and video sync problem. What's more, you can enjoy music and TV programs without affecting others and ensuring privacy. 4. Simply press the middle round button to quickly switch transmitter / receiver mode. Instant setup, just plug and play. Powered by USB, 't worry about running out of power when listening music or watching tv. Red Light means TX Mode while Blue Light means RX Mode. 5. This Bluetooth USB Adapter for TV is compatible with devices with 3.5mm and USB A interfaces. The RX mode can be used for car stereo, home stereo, amplifier, speaker, wired headphones, and the TX mode can be used for TV, PC, desktop, MP3, MP4, switch, etc. Material: plastic colour: black Package Contents: 1 x Bluetooth receiver 1 x Audio cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.