... control, with displayer With USB,SD card. FM 3.1CH home cinema with usb port ,sd card ... slot and SD card3, PMPO:3000WProduct Description:1,3.1CH DVD Home Theater System2, Universal power: AC ... 110-240V, 60/50Hz 3, Include 3 satellite speakers(wooden) and 1 subwoofer(wooden)4, ... Frequency:180Hz-20KHzS/N Ratio:≥85dBDistortion rate :1% 3.1CH home cinema with usb port ,sd card reader ...