Specification: Size: 754745MM Rated working voltage 12V~24V Limit working voltage 8-32V USB1 output 5V/1A USB2 output 5V/2.A Support music format MP3/WMA/WAV Support U disk capacity 1G-32G Support TF card capacity 1G-32G Working temperature 60dB Distortion 60dB Bluetooth Version Version 5.0 Bluetooth sound processing with A2DP (Advance Audio Distribution Profile) function Bluetooth transmission distance is less than 10M Bluetooth microphone effective distance 0.5-2M Feature: 1.Bluetooth answer, hang up, reject, redial calls and other functions 2.Support Bluetooth stereo music playback 3.Nixie tube display 4.Support car battery voltage detection 5.Support U disk playback (1G-32G) 6.Support TF card music playback (1G-32G)) 7.Support MP3/WMA/WAV/APE lossless format music 8.Support FM full frequency point transmission function 87.5-108.0MHZ 9.Automatic power-off memory function 10.U disk port supports 5V/1A mobile phone charging 11.Support 5V/2.1A mobile phone charging 12.Support mobile phone navigation voice prompt 13.Support charging identification Package including: 1X car player 1X Chinese and English manual Hands-free calling: The car FM transmitter adapter is equipped with a built-in microphone and noise suppression (CVC) technology to provide clear calls while allowing you to drive more safely; press the button to answer/redial/hang up/reject. Dual USB ports: wireless audio mobile