DS18 MB-PW215BT Double 15-Inch 2-Way Powered 4,000 Watts Active Speaker with Bluetooth, MP3, USB, SD and FM Radio 2-Way Active Speaker. Compression Driver with 1" Diaphragm. Two 15" Woofers, 2" Coil, 40 Oz. Magnet. 3.5mm Aux-In Compatible with All Digital Music. Includes Remote Control and has MP3/USB/SD/Bluetooth/FM Radio Capabilities built in. Mic Input: XLR or 1/4 Jack. Line Input: XLR or RCA or 3.5mm Aux. Line Output: XLR.