Features:- Support Bluetooth Handfree、built-in microphone、safe and convenient to answer the call、call when the noise processing of CVC、wind noise suppression- Full frequency car mp3、 can read U disk、 SD card inside the MP3 music.- LCD liquid crystal display、 elegant appearance- Can display the song title、 song information believe that frequency- Support USB/SD card(1GB-32GB)、support MP3/WMA/WAV/FLAC music format- Support A2DP function of mobile phone、mobile phone via Bluetooth directly broadcast high quality mobile phone music (Bluetooth stereo)- The power supply after opening、automatic back to even、automatic into the matching condition- Support to connect the computer to download function、can be directly connected to the computer to download song Micro SD/TF card(TF card not included)Specifications:Power Requirements 12V/24VUSB output:5V/500mA、can charge for various smart mobile phonesPower consumption:0.5WWorking temperate: -20?-50?Frequency Response:20Hz-15KHzBluetooth version:v2.1+EDRBluetooth transmission distance:10-15mFM emission frequency: 87.5~108MHzSize: Please refer to the pictures3.5mm audio cable length?About 25cmPackage includes:1 x Bluetooth Car Mp31 x Remote Control1 x Audio Cable1 x English User Manual