【2-in-1 Design】A magical device that can function as either a transmitter or a receiver. In TX mode, it can connect to non-Bluetooth devices like TVs via AUX and then pair with your Bluetooth headphones, allowing you to enjoy music or watch videos without disturbing others. In RX mode, connect it to your car/home stereo without Bluetooth via a 3.5mm cable and pair it with your phone. You can enjoy your favorite music wirelessly with high-quality sound! 【No Delay】With aptX Low Latency technology, the Bluetooth audio adapter for TV delivers high-quality sound in perfect sync. Pair it with your favorite Bluetooth headphones and enjoy your late-night TV shows or play games without disturbing others. Compatible with most Bluetooth headphones, allowing you to enjoy stereo sound without limitations. 【Hands-Free Calls】Our Bluetooth transmitter/receiver offers wireless music and hands-free calling. The built-in microphone and the latest CVC8.0 noise reduction allow you to answer phone calls with a single button press. 【Bluetooth V5.0】Equipped with the latest Bluetooth 5.0 technology for a stable connection, fast transmission, and wide signal range. Once paired, the Bluetooth transmitter automatically connects to your most recently paired Bluetooth devices. Maximum connection range of 10m (unobstructed). 【Long Battery Life】The built-in battery provides 8 hours of use in transmitter mode and up to 10 hours in receiver mode. This Bluetooth audio transmitter supports playback while charging. It features a compact and lightweight design that takes up minimal space, making it easy to take anywhere.