... .M.S:20W 2.1 usb sd speaker with remote control,multimedia speakerwith usb/sd slotANJI TENGFEI ELECTRONIC CO. LTD. ... audio-in for computer, dvd,mp3,mp4,cd,etc5.Master control of Volume, Treble and BassSpecificationOutput power:Subwoofer:10W,Satellite:5W ... '',Satellite:2.75''*2Frequency response:40Hz-20kHzPower requirement:AC220V/ 50Hz Product size:Subwoofer:L227*W240*H160 MM Satellite:L90*W88*H136MM ...