Blackmore Amplifier Speaker (BJP-15BT) 3 power modes: AC plug, Rechargeable Battery, 12V DC / Power supply: 12vDC or AC 110-240V 50/60 Hz Dual Wireless VHF Microphones included and integrated Music Player with SD Card and USB inputs / Bluetooth Connectivity / FM Radio / 5 band graphic EQ Wireless remote control 15 Subwoofer, titanium dome tweeter, 2250W