1)OutputPower:RMS6W(3W*2)THD=10%2)FrequencyResponse:150Hz-18KHz3)LoudSpeaker:1.5inch;4Ohms4)Signalandnoiseratioofpoweramplifier: 80dB5)Output:3.7V*1000MA6)Input:5.0V7)BuiltinrechargeableLi-ionBatteryandconnectDC5Vpowerinputsocket.8)PlayMP3formatmusicfromMMC/SDcard,Udisk.Connect3.5mmstereoaudiocabletospeakersocket LINEIN ,canenjoythemusicfrommobilephone、MP3、MP4、PC、IPODandotheraudiodevices,noneedtoshiftamongUdisk/SD/MMCcard、MP3/MP4,itcanautomaticallyreadthefirstinputmediadevice.9)Useremotecontrolcanautosearching.