Features:1.Detectanddisplaythebatteryvoltageatpoweron.Inputvoltagerange:12-24V.Chargingoutput5V or 3.1A.2.WiththewirelesstransmissionphoneformandmobilephonecarFMstereosystem,youcanautomaticallyswitchfromthemusicplaybackstatetothehands-freemodewhenyouanswerthecall.3.TheradiosupportsmusicplaybackUdisk.Any206channelscanbetransmittedfrom87.5-108MHz.4.Theradiofeaturesvoicepromptfunctionandsupportslastcallredial.5.TheradiofeaturesadvancedBluetoothV5.0andtheEDRprovidesastableconnection.Thehigh-performancemicrophoneswithCVCnoisecancellationtechnologyprovidesclearcallandvoicenavigation.Specifications:Name:CarBluetoothMP3PlayerSize:about44x45x70MM or 1.73x1.77x2.76inInputvoltage:DC12-24VWorkingcurrent:0-3.4A(MAX)SupportUdiskcapacity:32GBluetoothversion:V5.0andEDRTransmissiondistance:10-15MFMfrequencyrange:87.5-108MHZUSBinterface1:ChargingUSBinterfacewithidentificationfunction.USBinterface2:a,chargingUSBinterface,andcompatiblewiththeUdiskfunction.PluginaUSBflashdrivewithsongstoplaythesongsinthestore.LEDdisplay:displayFMfrequency(87.5-108MHz).Microphone:microphonefunctionandcallhands-freecallingPackingList:BluetoothReceivePlayerx1Instructionx1 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.