BC70 Car Bluetooth 5.0 FM Transmitter Radio Adapter Dual Display Wireless Handsfree Call MP3 Music Player QC3.0 PD USB Charger Feature: 1. Bluetooth V5.0; 2. Support dual digital tube display; 3. Support QC3.0 fast charge; 4. Support PD fast charge; 5. Support USB Type-C USB Power Delivery (PD) 3.0 protocol Quick Charge 3.02.0 protocol FCPSCP protocolAFC protocol USB BC1.2 DCPfor Apple 2.4A charging specification; 6. Support voice assistant function; 7. Battery voltage detection; 8. Automatic power-off memory function; 9. Support stereo FM transmission technology; 10. Support U disk playback; 11. Support TF card music playback; 12. Support WMA, MP3, WAV, FLAC music format files; 13. Bluetooth supports A2DP, AVRCP, HFP, HSP; 14. Bluetooth hands-free call; 15. Support Bluetooth stereo music DSP technology. Specification: Rated working voltage: 12V-24V Limit working voltage: 10~26V Working temperature: 0~50 degrees C Support playback format: MP3 WMA WAV FLAC Signal to noise ratio: >60dB Battery voltage error: ±0.5V Bluetooth version: Version 5.0 Bluetooth sound processing: with DSP technology and A2DP (Advance Audio Distribution Profile) function Bluetooth transmission distance: <10m Bluetooth microphone effective distance: 0.5~2m FM transmitting frequency: 87.5~108MHz Output current: USB: 5V1A QC 3.0: 5V3A, 9V2A, 12V1.5A PD: 5V3A, 9V2A, 12V1.5A Applicable phones: for iPhoneAndroid phones Conditions of use: universal, for car with FM radio and cigarette lighter normal power supply