big power 3.1 card reader speaker 1.Watts: 50W+15W*3 ... 4.FM,USB,SD,Karaoke,remote control Big power 3.1 card reader speaker1.Output power: 50W+15W*32.Drivers: 6"+613*3 ... .FM.USB,SD card reader, Karaoke jack General Specification Output power: 50W+15W*3P.M.P.O : 2000WDrivers: 6" subwoofer+613 ...