Bluetooth 5.3 Transmitter for Airplane/TV: This mini size Bluetooth transmitter with 3.5mm audio port makes it usable on any plane. You can watch and listen to films/TV shows and more from an in-flight entertainment system via your wireless headphones, say goodbye to the often-terrible wired headphones provided by the airlines and keep your favorite Bluetooth headphones in your ears. Safe Hands-free Calling: Built-in mic for answering calls, it equipped with noise cancellation technology, suppress environmental noise, pick up voices more accurately. This aux to bluetooth adapter also supports broadcasting voice notification from navigation. Provides you with the safety and convenience of hands-free calling while driving. Long Battery Life: Get up to 14 hours (TX 11H/RX 14H) of audio playback; charge via USB-C port, adding speedy charging and convenience to charging at any time. 2-in-1 Bluetooth Transmitter & Receiver: In TX mode, it is a Bluetooth transmitter plugged into non-Bluetooth devices such as TV/PC, transmitting audio to Bluetooth headphones/speaker; In RX mode, it is a Bluetooth receiver connected to wired speaker/car stereo/home sound system, receiving audio from smartphones or tablets. Ease of Use: Plug, pair, and play, easier to use: just long the power button to turn on, the Bluetooth music adapter pair auto with your Bluetooth devices. (Make sure your Bluetooth device is noy pair with another device). Working range up to 33ft. Colour:Black Material:Plastic Package Contents: 1 * Bluetooth 5.3 Transmitter Receiver 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.