2-In-1 DesignA magic device that can work as either Transmitter or Receiver. In TX mode, it can be plugged into non-Bluetooth devices such as TV via AUX and then pair it with your bluetooth headphones. So that you can enjoy music or watch videos without disturbing others. In RX mode, connect it to your non-Bluetooth car/ home stereos, speakers via 3.5mm cable , just pair it with your phone. You can enjoy your favorite music wirelessly with high-quality sound!No More Delay Featuring aptX Low Latency technology, bluetooth audio adapter for tv delivering high quality sound in perfect syn. Pair with your favorite bluetooth headphones and enjoy your late night TV show or play games without dusturbing others. Compatible with most Bluetooth headphones, allows you to enjoy the stereo sound without wire restriction.Hands-free CallOur bluetooth transmitter receiver offers wireless music and hands-free calling,the built in microphone and the latest CVC8.0 noise cancellatio allows you to answer phone calls with one button. Bluetooth V5.0 Equipped with Latest Bluetooth 5.0 technology, stable connection, fast transmission, wide signal rang. Once paired, the bluetooth transmitter will automatically reconnect to your last paired Bluetooth devices. A maximum connection range of 10m (without obstacles).Long BatteryBuilt-in battery provides 8 hours of use in transmitter mode and up to 10 hours in receiver mode. This Bluetooth audio transmitter supports play while charging. Features a compact and lightweight design that hardly takes up space, so you can bring it anywhere.