?NOTE? Electronic piano and music instruments have compatiable issues under TX-mode. Please pair the headset with the ML302 before boarding the plane or turning on the TV. Then connect the ML302 directly to the TV's 3.5 audio interface. We offer 1-year manufacturer's warranty, feel free to reach us. ?Plug&Play Easy Setup? Instant setup, just plug and play, support volume control. Lavales Bluetooth Audio Adapter's 3.5mm/RCA audio jack compatiable with most devices. ?Ideal for Travel? 20+ Hrs Playtime & Handy Size make it your best airplane travele bluetooth partner. Please make sure that the transmitter is fully charged before every use. ?Latency-Free Lip-sync? Bluetooth Adapter support aptX-Low Latency technology, reduce latency less than 40ms. Note: The paired device require support AptX-LL as well. ?Bluetooth 5.3 & Dual Link? Bluetooth 5.3 technology provides more stable wireless connections. Connect 2 headphones samutaniously. Sharing TV with your family’s with headsets. ?Bluetooth Transmitter & Receiver? Working as a Bluetooth Transmitter to turn a non-bluetooth tv, pc, gym/flight equipment into bluetooth-enable. As a Bluetooth Receiver to stream music to those speakers/car/home stereo systems which without bluetooth.