2 In 1 Bluetooth Audio Adapter:Bluetooth 5.0 Adapter Provide receiver/transmitter mode, Connect the device via 3.5mm interface, select transmit (TX) mode or receive (RX) mode , and press and hold the power switch for 3 seconds to turn on. 5.0 bluetooth transmitter Add Bluetooth functionality to non-Bluetooth headphones or speakers to enjoy high-quality music. Low Latency, Pure Tone:Bluetooth receiver jack non-delayed content transmission in launch mode , superb HD stereo, Provides a rich and deep sound experience. Bluetooth flashes twice in 4 seconds, indicating connected status. Supports playback while charging. Fashion and beautiful bluetooth transmitter receiver and transmitter. purer sound quality, audio-visual synchronization. Easy-to-use, Fashionable And Lightweight Design:Bluetooth pc adapter automatic memory connection function, simple operation, convenient connection, no download, no charging cable, can work for about 8 hours after fully charged. Bluetooth car kit supports audio devices with audio input interface for wireless audio reception and transmission, supports automatic search and connection to Bluetooth devices. Wide Compatibility:Adapter wireless bluetooth plug and play, Smart Compatibility: Android, IOS System Mobile Phone, TV, Smartphone, Car Radio, Stereo, Headset, PC, Speaker, Projector, MP4, MP3 Player, Home Audio, Laptops, Tablets, Ideal for home or vehicle music streaming audio systems.Turn your audio device into a Bluetooth device in seconds. Stable Signal Connection:Bluetooth audio adapter uses Bluetooth 5.0 technology to reduce signal delay , built-in improved signal transmission circuit, faster and more stable connection. The distance between the Bluetooth adapter and your Bluetooth device should be less than 10m.