Welcome to our product! Here are the optimized key points based on the given product: 1. Versatile Functionality: The transmitter and receiver modes can be easily switched with a single button, enabling Bluetooth transmission from non-Bluetooth devices in transmitter mode and high-fidelity music reception in receiver mode. 2. User-Friendly Design: The Bluetooth audio adapter is equipped with an LCD screen, offering convenient operation. The screen displays the selected mode (RX/TX) and battery level, and in TX mode, it can search and display up to 8 nearby Bluetooth devices for connection. 3. Long-Lasting Battery: The Bluetooth adapter features a built-in rechargeable battery with up to 8 hours of usage time. A charging indicator next to the port ensures easy monitoring, and the device can be fully charged in just two hours using the included USB charging cable. 4. Enhanced Connectivity: Utilizing Bluetooth 5.0 technology, the adapter provides stable connections and faster transmission speeds. With a coverage area of up to 10 meters, it delivers low-latency HD stereo audio and automatically reconnects to the last paired device. 5. Hands-Free Communication: The built-in microphone enables hands-free calls when the device is in receiver mode, delivering high-quality, low-latency audio. Additionally, the easy-to-use function button allows for seamless switching between RX and TX modes. We hope these key points provide a clear understanding of the product's features and benefits. Thank you for considering our product!