1. Built-in transmit (TX) and receive (RX) signals, suitable for a variety of devices. Built-in antenna, 10-meter unobstructed transmission, seamless living room connectivity. 2. Large screen, can display eight devices simultaneously; in streaming mode, you can search and display 8 nearby Bluetooth devices to choose from. 3. This wireless audio transmitter and receiver uses a Bluetooth 5.0 chip, offering low power consumption and a high, stable signal transmission speed for smoother music listening. 4. This wireless transmitter and receiver supports high-quality coding technology, ensuring high audio quality and low latency, preserving more music details and delivering CD-like sound. 5. TX receiving mode converts wired signals to Bluetooth and transmits them to the headset via the Bluetooth connection; RX receiving mode receives the signal from the wireless device and transmits it as wired audio via the Bluetooth connection.