2.1 multimedia Speaker 1,With USB,SD.FM,MIC Function 2,Remote control 3,Blue VFD display screen 2.1 multimedia Speaker Description:1,With usb,sd ... card read function, play mp3 type music,can add wma type music play .2 ... the audio frequency with output. Specificate:1,Output power:30W+10W*2(RMS)2,Speaker driver:woofer5.25inch,satellite3inch*23,Frequancy ...