QC3.0 Fast Charge Car Bluetooth MP3 Player Car FM Transmitter 1. Bluetooth version: 5.0 2. Bluetooth sound processing: with DSP technology and A2DP (Advance Audio Distribution Profile) function 3. Rated working voltage: 12V-24V 4. Output ripple: less than 200mV 5. QC3.0 USB port: support QC3.0, QC2.0, output 5V3A, 9V2A, 12V1.5A 6. Bluetooth USB port: U disk (1A output) 7. Music format: MP3WMAWAVFLAC 8. Bluetooth transmission distance: about 5-10m 9. FM transmission frequency: 87.5MHz-108.0MHz 10. Power: 5W 11. Material: ABS 12. Weight: about 44g 13. Size: about 7.1x4.3x4.8cm Features: 1. Bluetooth 5.0, lossless transmission, low power consumption, stable connection 2. Support QC3.0, QC2.0, FCP, AFP and other charging protocols 3. With blue ambient light ring 4. Support power-off memory, support Bluetooth automatic reconnection 5. Bluetooth supports A2DP, AVRCP, HFP, HSP 6. Support U disk, T card, Bluetooth playback 7. Support lossless music formats such as APEWAVFLAC 8. Support button to wake up mobile phone voice assistant 9. Private answer switch 10. FM stereo output 11. Low voltage alarm 11. Support input over voltage protection, output over current protection, output short circuit protection, over temperature protection