I am selling this item as I no longer need it. * **2-in-1 Bluetooth Transmitter & Receiver:** In TX mode, connect to devices like non-Bluetooth airplanes or TVs and connect Bluetooth headphones to listen to music. In RX mode, turn non-Bluetooth devices like car audio systems or old speakers into Bluetooth-enabled devices, allowing you to play music from your phone or computer. Enjoy the freedom of wireless connectivity with a Bluetooth transmitter/receiver anytime, anywhere. * **Latest Bluetooth 5.4 Technology:** Upgraded to Bluetooth 5.4, providing low latency and high-speed transfer for seamless audio-video synchronization and clear, detailed sound. Break free from limitations and enjoy the freedom of wireless Bluetooth! * **Dual Pairing for Music Sharing:** Connect two pairs of AirPods or wireless Bluetooth headsets simultaneously via the Bluetooth receiver. Easily share music and video experiences with loved ones or friends during flights. * **Built-in Microphone:** The ugreen's built-in microphone allows you to answer calls directly without interrupting music playback when the device is connected to your phone for music. * **Retractable Spring Cord:** The automatic retractable cord allows for easy storage and a compact size for ultimate portability. Perfect for connecting devices in your car or at home, keeping your space tidy and maintaining a seamless experience!