Fangrui Product Details 1. Qc3.0 Fast Charge Car Bluetooth Mp3 Player Car Fm Transmitter 2. Bluetooth Version: 5.0 3. Bluetooth Sound Processing: With Dsp Technology And A2dp (advance Audio Distribution Profile) Function 4. Rated Working Voltage: 12v-24v 5. Output Ripple: Less Than 200mv 6. Qc3.0 Usb Port: Support Qc3.0, Qc2.0, Output 5v3a, 9v2a, 12v1.5a 7. Bluetooth Usb Port: U Disk (1a Output) 8. Music Format: Mp3wmawavflac 9. Bluetooth Transmission Distance: About 5-10m 10. Fm Transmission Frequency: 87.5mhz-108.0mhz 11. Power: 5w 12. Material: Abs 13. Weight: About 44g 14. Size: About 7.1x4.3x4.8cm 15. Features: 16. Bluetooth 5.0, Lossless Transmission, Low Power Consumption, Stable Connection 17. Support Qc3.0, Qc2.0, Fcp, Afp And Other Charging Protocols 18. With Blue Ambient Light Ring 19. Support Power-off Memory, Support Bluetooth Automatic Reconnection 20. Bluetooth Supports A2dp, Avrcp, Hfp, Hsp 21. Support U Disk, T Card, Bluetooth Playback 22. Support Lossless Music Formats Such As Apewavflac 23. Support Button To Wake Up Mobile Phone Voice Assistant 24. Private Answer Switch 25. Fm Stereo Output 26. Low Voltage Alarm 27. Support Input Over Voltage Protection, Output Over Current Protection, Output Short Circuit Protection, Over Temperature Protection