... the change of sound conveniently. Application Professional karaoke power amplifier matched with speaker system.Technical Parameters Model KM ... 180mV Mic 8mV Gross Weight(KG) 23Speaker, Loudspeaker, Pro Audio, Audio System, Speaker Box, Speaker System, Line ... Throw Speaker, Sub Woofer, Sub Bass, Woofer Speaker, Amplifier, Power Amplifier, Microphone, Mixer are our factory production line. Any interested ...