amplifier speaker,professional sound system, 20 channels, professional stage light, have high quality and best price amplifier speaker,professional sound systemVoltage: AC110V-130V,220V- ... short and long distance shootingScan:Pan 540° , Tilt 280 °, moving towards both directions mini-step adjustable( this channel function alternative ... resetDimension (cm): 50.5*49*67.G.W:41kg. 575W head spot light