... Speaker with remote control,multimedia speaker Support USB/SD card Piano finish with wood enclosure R.M.S:20W 2.1 usb sd speaker with remote control ... .mp3,.wma music from USB,SD card with remote control.4.3.5mm stereo audio-in for ... computer, dvd,mp3,mp4,cd,etc5.Master control of Volume, Treble and BassSpecificationOutput power:Subwoofer ... 2.1 usb sd speaker with remote control,multimedia speaker/SR-500