Features1. Support FM full frequency point 87.5MHZ-108MHZ2. Automatic power off memory channel3. Support QC3.0 charging, (the other USB1+USB2 total 4A)4. Support TFT color screen display5. Support TF card music playback6. Support bluetooth answer, reject, hang up, redial and other functions.7. Private call8. Support audio output input9. Support siri/voice assistant function10. Support select folder to play11. Real-time battery voltage detection12. Support EQ sound mode selection: normal, classic, pop, rock, jazz13. Support play mode selection: all loop, loop songs in folder, single loop, random playtechnical parameter Rated working voltage 12V~24VLimit working voltage 9-32VUSB1 output 5V/2.4AUSB2 output QC3.0 (3.6V-6.5V/3A, 6.5V-9V/1.5A, 9V-12V/1A)Working temperature <60 degreesMusic format MP3, WAVSupport U disk, TF card capacity 1G-32GBluetooth version Version 4.2+EDRFM transmit frequency 87.5MHz-108 MHzThe effective distance of the call is 0.5-2MBluetooth effective distance is less than 10MLCD resolution 128*160 (1.8 in)