2 in 1 design: a magical device that can work as a transmitter or receiver. In TX mode, it can be plugged into non-Bluetooth devices such as TV via AUX, then pair with your Bluetooth headphones. So you can enjoy music or watch videos without disturbing others. In RX mode, connect it to your non-Bluetooth car/home stereo, speakers via 3.5mm cable, just pair with your phone. You can enjoy your favorite music wirelessly with high quality sound No more delay: Featuring aptX low latency technology, the Bluetooth audio adapter for TV delivers high quality sound in perfect synchronization. Pair it with your favorite Bluetooth headphones and enjoy your late night TV show or play games without dusting others. Compatible with most Bluetooth headphones, allows you to enjoy stereo sound without wire restrictions. Hands-Free Calling: Our Bluetooth transmitter receiver offers wireless music and hands-free calling, built-in microphone and latest CVC8.0 noise cancellation allow you to answer phone calls with just one button. Bluetooth V5.0: Equipped with the latest Bluetooth 5.0 technology, stable connection, fast transmission, wide signal range. Once paired, the Bluetooth transmitter will automatically reconnect to your last paired Bluetooth devices. A maximum connection range of 10 m (without obstacles). Long Battery: Built-in battery provides 8 hours of use in transmitter mode and up to 6 hours in receiver mode. This Bluetooth audio transmitter supports playback while charging. Features a compact, lightweight design that takes up little space, so you can take it anywhere.