UGREEN Bluetooth 5.4 Transmitter Receiver, Dual Pairs 3.5mm Audio Aux Adapter with Built-in Microphone for Hands-Free Calls, 2-in-1 Wireless Bluetooth Adapter Compatible with Car Speakers Home Stereo - 45236

• 2 In 1 Bluetooth Transmitter Receiver: In TX mode, connect to devices like airplanes, TVs, and more without Bluetooth, then connect Bluetooth headphones to listen to music. In RX mode, turn non-Bluetooth devices like car audio or old speakers into Bluetooth-enabled ones, and then play music from phones, computers, and more. Enjoy cable-free freedom via Bluetooth Transmitter Receiver, anywhere, anytime. Latest Bluetooth 5.4 Technology: Upgrade to Bluetooth 5.4 for a fast transfer with low latency, ensuring seamless audio-video synchronization and clearer sound with more vivid details, where every note is crystal clear. Break free from limitations and enjoy wireless Bluetooth freedom! Dual Pairing for Shared Music: Connect two AirPods or wireless Bluetooth headsets simultaneously via the Bluetooth receiver. Share musical and visual experiences with close lovers or friends during a flight with ease. Built-in Microphone: The built-in microphone of the ugreen allows you to answer calls directly without interrupting music playback when the device is connected to a mobile phone to play music. ugreen ensures that you do not miss any important calls while enjoying music. Retractable Spring Cord: Adjust the length effortlessly to suit your needs, with an automatic retractable design for easy storage and a compact size for ultimate portability. Perfect for in-car and home device connections, keeping your space neat and your experience seamless!