【TRANSMITTER & RECEIVER DUAL MODE: 】Upgraded lightweight 2-in-1 Bluetooth V5.3 transmitter and receiver; able to use as a transmitter or receiver; can pair with two headphones / speakers at once. | 【Seamless, wireless audio】: Connect the 3.5mm audio output port to home audio/wired headphones, etc., turning ordinary audio devices into Bluetooth devices, and enjoy the music feast brought by Bluetooth wireless transmission. Very suitable for Bluetooth pairing with mobile phones, computers, tablets, and Bluetooth transmitters. | 【LOW DELAY: 】aptx Low Latency technology eliminate Bluetooth audio delay, so you can watch TV / Movie / Video and listen to high-clarity sound in perfect synchronization. | 【20 Meter Transmission Distance】：The Bluetooth 5.3receiver and can provide a stable Bluetooth connection of up to 20 meters . Walk around the house without worrying about disconnecting, enjoy stable connectivity and music. | 【Latest Bluetooth V5.3 Technology】With the latest V5.3 EDR technology, This Wireless 5.3 USB Bluetooth Adapter offers a quick connection and up to 20m working range, delivering clear, functional, and enjoyable sound. Backward compatible with Bluetooth 5.0/4.2/4.0/3.0/2.0.