... -disk and USB driver, Support MP3 player and audio; Support SD/MMC card and u-disk, ... Support audio input, stereo surround; Support DC 5V (USB) charging, support (5V/1A) charger, built-in ... other sound sources. Remote controller can select; Vibration speaker Specification 1, Power Input 23W(RMS2, Frequency Respond ... 30Hz-20Hz3,Speaker Unit 40mm4Ω2W×24, Rated Voltag 3. ...