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 sound system. 2. With the latest V5.3 EDR 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 video games or watching movies, you'll experience high quality sound without audio and video sync problem. What's more, you can easily 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, don'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