Airplane Bluetooth 5.3 Adapter: This Bluetooth aduio adapter can seamlessly connect any Bluetooth headphones/earbuds to in-flight enterainment systems, add more fun & improve in-flight audio quality for your travel. Can pair with 2 Bluetooth devices sim, compatible with Airpods, home stereo, theater, PCs, Car Stereos.Supports 2 Wireless Devices & Easy to Use: The airplane Bluetooth adapter can pair with 2 airpods/Bluetooth headphones, allowing you share music wirelessly with your friend. Or it can pair with 2 Phones in RX mode. Just press the power button 2 times to pair with the second Bluetooth device. Plug, pair, and play, easier to use.2-in-1 Bluetooth Transmitter & Receiver: Support both transmitter mode(TX) & receiver mode(RX), 1 sec to switch. Built-in microphone, this Bluetooth AUX adapter allows you to make hands-free calls while driving, Bluetooth 5.3 tech reduces the voice delay and background noise. Just press the power button to answer/hang up calls, and a long press to reject the call.Flexibility 3.5mm AUX cable: Unlike other products that have fixed-prong or foldable prongs, our long bendable cable won't fall out if bumped. Made of high rebound rubber material, designed for narrow environments such as wall-mounted TVs and wall-mounted audio systems. it is soft, resistant to bending, and can last longer.Play While Charing & Built-in Battery : The Bluetooth audio adapter has built-in battery, in case you forget to charge it before using it, the Bluetooth adapter can be used while charging with the included charging cable.Portable Bluetooth Audio Adapter: The Bluetooth transmitter receiver is designed with a keychain attachment, so you can easily hang it in your backpack or any place. Super mini size, lightweight design, the Bluetooth audio adapter will not take up extra space and is easy to carry around.