... VFD display 2.1 home theatre speaker with usb/sd Q37 TOP SELLER! BRAND NEW! FAST DELIVER! WARRANTY ... subwooferl All around illuminated volume control knobsl USB/SD media card reader inputl With highly sensitive FM ... .1 multimedia speaker.2.We can add USB/SD function and FM function on multimedia speaker,Mp3 ... .5.We can make professional speaker,mini speaker,SD card speaker,hifi speaker,USB speaker,5.1 ...