Low Latency: Whether you are playing video games or watching movies, you'll experience high quality sound without audio and video to be out of sync issue. Handsfree Calling: Built in microphones and noise cancellation, the bluetooth adapter can effectively filters out road noise, resulting in clearer hands-free calls on both input and output. Bluetooth 5.3: Bluetooth 5.3 chip offers a 10m stable connection, reduce noise as well as low latency to ensure excellent stereo effects deliver clear, functional, and enjoyable sound. Receiver Mode: Unlock the full potential of your speakers and car audio systems! Simply insert the Bluetooth AUX adapter into the AUX 3.5mm jack on your car stereo, and then make answer, and reject handS-free calls. with one button, enjoy music in your phone and listen to navigation voices. Usage Steps of TX Mode: Plug it into USB Port for power supply, Switch to TX( Red light) Connect the other end to your TV 3.5mm audio port Turn on your bluetooth headphone, make sure it is on the pairing states. Put it close to usb transmitter and wait for pair automatically. Enjoy your TV now without disturbing others! Colour:Black Material:ABS Package Contents: 2 x Bluetooth Transmitter 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.