Mr. Dj PM2880BAT 15-Inch 3500-Watt Max Power Speaker with Built-In Bluetooth and Battery with FM Radio/EQ/LCD/MP3/USB/SD 15-Inch 3500 Watt Max Power Speaker with Built-In Bluetooth & Battery FM Radio/EQ/LCD/MP3/USB/SD 3500 Watts Max P.M.P.O. 4" Interleaved Sandwich Voice Coil 1" Dome Driver, 40 Oz Magnet Connection Option 1/4" Stereo Jack RCA Jack, Built-In Battery 12V MP3 Player, FM Radio USB/SD Card Input Microphone inputs, Graphic EQ, Wireless Remote Control, Microphone with 9FT microphone cord