Bluetooth 5.4 Adapter Car Bluetooth Receiver Support U Disk Play AUX To USB 1. Bluetooth version: 5.4 2. Bluetooth protocol: A2DP, HFP 3. Transmission rate: 3Mbps 4. Output connector: 3.5mm audio 5. Playback mode: Bluetooth connectionU disk playback 6. Power interface: USB 7. Frequency response: 20hz-20khz 8. Transmission distance: 10m 9. Weight: about 19g 10. Size: cable length about 40-120cm Functional features: 1. Equipped with high-performance Bluetooth 5.4 chip, stable signal, fast response, refuse to delaylagging 2. HD calls, built-in noise reduction microphone, navigation playback, so that your driving safer 3. Support one to two function, switch at will, share the music of two cell phones 4. In-car Bluetooth 5.4, true lossless sound quality, no noise, no delay, can calllisten to songsnavigation 5. Vehicle connection, start with the car on the road to feel the music atmosphere, can be wireless listening to songs, models common 6. Enameled copper wire core, thicker and thicker, high-fidelity transmission, no noise, no current sound 7. Automatically connect back to the memory pairing design, easy to operate, not only car use, amplifier speakers can be used 8. Support U disk playback, plug and play, lossless sound quality, compatible with a variety of brands of U disk, support for WMAMP3APEFLAC music formats