1.Car Bluetooth MP3 supports hands-free calling,built-in high sensitivity microphone, noise floor and suppression. 2.1.77-inch LCD dot large screen display song name,playback status and other information 3.Automatic detection of car battery voltage,voice reminder,support for instant voltage viewing 4.Bluetooth smart MP3 player,support mobile phone/network/all kinds of music APP software to play 5.Support mainstream map APP navigation voice broadcast and other software language playback functions of QQ/WeChat 6.Support lossless audio decoding,high resolution,high performance stereo,support WMA,APE,FLAC,WAV and other lossless music formats.(97% of car Bluetooth on the market does not support FLAC,APE format) 7.Support TF card and U disk extended playback 8.Upgraded version of Actions 4.2 Bluetooth chip,the connection is more stable,and the automatic connection is faster. 1.Working voltage:12V-24V 2.USB output voltage:DC/5V dual USB 3.Output current:3.4A dual USB smart current 4.Bluetooth version:Bluetooth 4.2 5.Effective distance:about 10m 6.Launch distance:Less than 5M 7.Support TF card/U disk capacity:less than equal 64GB 8.Voltage detection range:6-30V 9.Power mode: lighter power supply 10.Bit rate:64-320KBPS 11.Harmonic distortion:Less than 0.05% FM:Less than 0.1%) 12.Signal to noise ratio:85db(FM:65db) 13.File Support Type:MP3/WMA/APE/FLAC/WAV 14.Screen display:1.77 inch LCD dot screen 15.Product size:63*50*85MM 16.Packing size:128*92*58MM 17.FM frequency modulation function:Yes 18.Play time:10 hours color:black Material:ABS Package Contents: 1* Car Charger Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.