(1)Set karaoke professional audio,2 separate frequency.
(2)The frame made of high density mid-fiberboard is burly and Enduring
(3)Loudhailer adopt professional speaker that is  original package,we romise you can use
  itaccurately for 3 years without any trouble.It fit home audio and karaoke audio dueto clear
  alt, sweet mediant and revert lifelike humansound.
(4)With particular deadening, it reduce the resonance, and the sound is clearer.
(5)Adopt peculiar automatic protection line system to increase probability that  system is in
  high volume.
(6)Components：5" mediant +3"alt
(7)Impedance rating：8
(8)loading power：20W-50W
(9)Sensitivity：85dB（1w/1m)