※ Brand new, unused!! ※ Immediate purchase OK!! ※ Anonymous delivery!! ※ Same-day shipping!! We will ship within 24 hours (^^) Product Description A 2-in-1 audio adapter compatible with Bluetooth 5.3. It supports transmission (TX) and reception (RX), allowing you to make various devices such as TVs, speakers, and cars wireless. Usage Examples TV: Watch with headphones at night without disturbing your family Wired speakers: Wireless playback of music from smartphones and tablets on Bluetooth-incompatible speakers PC and game consoles: Audio with Bluetooth earphones and headphones Car: Wireless music and calls on car stereos with AUX connection Features TX mode: Converts wired audio to Bluetooth signals for output RX mode: Receives Bluetooth signals and plays them on wired speakers and headphones Lossless sound quality: CD-level high sound quality Hands-free calling: Supports calls with a microphone in RX mode Battery: Approximately 4 hours on a full charge, can be used while charging Easy connection: Plug and play by plugging into AUX and 3.5mm Communication range: Up to approximately 10m (without obstacles) Set Contents Bluetooth adapter main unit, Charging cable 3.5mm stereo inlet socket Instruction manual Notes Please remove the protective film on the surface of the main unit before use. Cannot be used for keyboards, mice, or file transfer. Designed for 1-to-1 connection. How to Use RX Mode (Reception) 1. Charge with the charging cable 2. Connect to speakers/headphones with AUX 3. Switch the switch to "RX" 4. Long press the multi-function button to turn on the power. Blue LED flashes to indicate pairing preparation 5. Search and pair with your smartphone TX Mode (Transmission) 1. Charge with the charging cable 2. Connect to TV/PC with AUX 3. Switch the switch to "TX" 4. Long press the multi-function button to turn on the power. Red LED flashes to indicate pairing preparation 5. Turn on the Bluetooth device to be connected and it will connect automatically (red LED lights up when successful)