High quality brand new Compact and Portable: Bluetooth transmitter receiver is designed with a compact size to save space. Its small and portable design makes it an ideal choice for travel and daily use, easily fitting into your pocket or travel bag for easy access to wireless audio anytime, anywhere.2 in 1 Bluetooth Transmitter Receiver: This 3.5mm wireless adapter supports both TX and RX modes. Whether at home, in the car, or on a plane, it can easily meet your wireless Bluetooth needs. Simply connect it to a non-Bluetooth device, such as a plane or car stereo, and enjoy Bluetooth wireless sound. Not only is it a great gadget for enabling wireless Bluetooth, but it's also an airplane travel essential, eliminating the hassle of wired connections!Wide Compatibility: The Bluetooth transmitter can connect to most devices with a 3.5mm AUX port, including car, TV, projectors, and more; enabling Bluetooth connection for a wireless audio experience. The aux wireless adapter is compatible with most mainstream Bluetooth devices, such as AirPods, BT headphones, etc. Whether upgrading a traditional wired speaker to Bluetooth or connecting the air plane stereo to wireless headphones, this adaptor can easily achieve without complex setups.Easy to Use: Just press and hold the function button for 3 seconds to power on and pair with Bluetooth devices. After the initial pairing, airplane headphone adapter will automatically reconnect when again. No complex setup is required, allowing you to easily enjoy convenient wireless audio whether you're on an airplane flight or in a car.8H Battery Life & Dual Pairing: This Bluetooth adapter offers up to 8 hours of stable transfer in TX mode and 5.5 hours in RX mode, ensuring long-lasting performance. It can pair with two devices simultaneously, making it easier to share music with companions while airplane travel. Additionally, it has a built-in microphone for easy call answering and hanging up without disconnecting. (Note: Calls are only supported in RX mode.)Note: Not compatible with AirPods Pro 2, but supports AirPods, Airpods Pro, etc.