Features:1. Car hands-free calling system, one-touch phone call. Double-click the knob button to call back the recent call.2. Automatic detection of car battery voltage, voice reminder, intelligent digital display.3. Smart MP3 player, support mobile phone / network / all kinds of APP software music playback.4. Support mainstream map APP navigation voice broadcast and other software language playback functions of QQ / WeChat.5. Car MP3 function, support for playing lossless APE extended MP3 music, support breakpoint memory function.6. Support memory card and U disk extended playback, FM full frequency point transmission.7. Dual USB expansion plus TYPE-C fast charge protocol charging.8. Digital display large screen, clear and intuitive. Dynamic scanning technology, stable picture, clear and intuitive display.Specification:Condition: 100% Brand NewItem Type: Car MP3 PlayerWorking voltage: 12V-24VUSB output voltage: DC/5VDual USB output current: 3.6A (MAX)BT version: 4.2Effective distance: about 5MLaunch distance: <5MSupport memory card / U disk capacity: 32GBVoltage detection range: 6-30VPower mode: cigarette lighter power supplyBit rate: 64-320KBPSHarmonic distortion: <0.05%, FM: <0.1%Signal to noise ratio: 85db (FM: 65db)File support type: MP3/WMA/APE/FLAC/WAVPackage list:1 * Car MP3 PlayerNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.