5 1 Home theater speaker systems 1,RMS:45W+10W*5 2,USB/SD card ... control USB/ SD,FM Remote New 5.1 Home Theater Speaker System Features:1. Built-in USB and SD memory card function ... remote controller 1,Output power:45W+10W*5(RMS)2,Speaker driver:woofer5.25inch,satellite3inch*53,Frequancy response:40HZ-20KHZ4,S ...