Features: 1) Power amplifier: 180W x 2 (8Ω RMS) super power output and perfect check protection circuit, suitable for any places 2) Fully functional remote control 3) Professional digital meeting effect with various adjustment functions 4) Music volume, microphone volume, microphone sound effect can be remote- controlled 5) Three sets of microphones for individual volume control 6) Built-in 5 band microphone parameter EQ system, maintains good consistency and reliability for long usage time 7) Power auto adaptation function, protects speakers against overloading 8) Auto sound source selection 9) Music effecter input / output 10) 4 analog inputs, one line input / output ports 11) 4 video inputs and 3 outputs 12) Dimensions: 478 x 380 x 145mm Packing: Dimensions: 565 x 435 x 205mm G.W.: 14.2kg