5.1 Ch Speaker 1,RMS: 40W+15W*5 2,Driver unit: 5.25"+3"*5 3,USB/SD,FM,Remote Function 4,IC:7*2030(Imported) 5.1 ... New arrival multimedia speaker system Features:1,Support USB,SD,FM functon, 2,Remote control 3,digital tube play screen 4 ... , wooden box and plastic pannel construction 5 ...