Car Bluetooth MP3 Player Ambient Light Charger 1. Bluetooth version: 5.3 2. Bluetooth sound processing: with A2DP (Advance Audio Distribution Profile) function 3. Rated working voltage: 12V~24V 4. USB port 1 output: 5V1A U disk playback 5. TYPE-C output: 5V2.4A 6. USB port 2 output: 5V2.4A 7. Music format: MP3WMAWAV 8. Support U disk: 1-32G 9. Working temperature: 0-50 degrees 10. Sensitivity: -42DB+-3DB 11. Working current: 45MA (MAX) 12. Standby current: 25MA (MAX) 13. Frequency: 2.402-2.480GHZ 14. Sensitivity: -92DB 15. RF output: 4DBM 16. Signal-to-noise ratio: 60dB 17. Frequency response: 20Hz-20Khz 18. Left and right channel separation: 60dB 19. Bluetooth transmission distance: less than 10M 20. Bluetooth microphone effective distance: 0.5-2M 21. FM transmitting frequency: 87.5MHz-108.0MHz 22. Effective launch distance: 2M 23. Can detect car voltage 24. Built-in microphone, supports Bluetooth hands-free calling to receive incoming calls safely 25. Supports the A2DP function of mobile phones. After connecting to Bluetooth, high-fidelity music can be played directly 26. Support U disk playback, support MP3WMAWAVFLACAPE multiple music decoding music formats 27. Support output overvoltage protection, short circuit protection, overcurrent protection, and overtemperature multiple protections 28. Automatically reconnect and enter pairing state after power on. 29. Support U disk playback (1G-32G) 30. Net weight: 29.8g 31. Size: 4.6x4.23x7.36cm