Fangrui Product Details 1. Bc80 Hands-free Calling Voltage Display Adapter Car Charger Bluetooth-compatible Mp3 Player 2. Versatile Functionality:this Bc80 Car Charger Combines A Fast Charger, Bluetooth-compatible Mp3 Player, Hands-free Calling, And Voltage Display In One Compact Device. 3. High-quality Audio:enjoy Lossless Audio Quality For An Enhanced Music Experience During Your Drives. 4. Fast Charging Capability:equipped With Qc3.0 And Pd Ports For Rapid Charging Of Your Devices On The Go. 5. Bluetooth-compatible 5.3 Technology:utilize The Latest Bluetooth-compatible 5.3 For Stable And Efficient Wireless Connectivity. 6. Fm Transmission:built-in Fm Transmitter (87.5 Mhz-108.0 Mhz) Allows You To Play Music Through Your Cars Audio System. 7. Multiple Audio Sources:support For U Disk And Tf Card (up To 32gb) Provides Versatile Options For Music Playback. 8. Voltage Display:real-time Voltage Display Helps Monitor Your Cars Electrical System. 9. Specifications: 10. Product Net Weight: 41.8g 11. Product Dimensions: 3.8*3.7*8.9cm 12. Bluetooth-compatible Version: 5.3 13. Bluetooth-compatible Range: 10 Meters 14. Fm Frequency Range: 87.5 Mhz-108.0 Mhz 15. Qc3.0 Output: 5v3a, 9v2a, 12v1.5a 16. Pd Output: 5v3a, 9v3a, 12v3a, Pps: 3.3v-11v3a 17. Input Voltage: 12v-24v 18. Maximum Output Power: 54w 19. Storage Support: U Disk And Tf Card Up To 32gb