Connections: 1 x USB port, 1 x SD / MMC / MS memory card slot, 1 x XLR microphone input, 1 x 6.3 mm jack microphone input, 1 x stereo RCA auxiliary input, 1 x XLR line output, 1 x 6.3 mm jack line output Power: max. 300 Watt Tweeter: 1" (2.5 cm) Frequency response: 40 Hz - 20 kHz Sensitivity: 90 dB Impedance: 8 ohms 2-band equaliser MP3 control section Microphone volume control Line volume control Signal source selector LED display Metal protection grid Bluetooth telescopic antenna Power Supply: AC 220-240V, 50/60Hz