1,our factory 2012 New speaker 2,MIC input, USB/SD input,FM Radio 3,colorful lighting disco 4.EQ,Treb,Vol,Bass 5.MDF box,PVC namesuper bass Speakermodel numberW V-306W V-308W V-310output power/RMS100Wx2200Wx21300Wx2speaker unitTweeter+6.5"x3Tweeter+8"x3Tweeter+10"x3impedance4Ω4Ω4Ωfrequency response20Hz-20KHz20Hz-20KHz20Hz-20KHzS/N Ratio≥72dB≥72dB≥72dBseparation≥84dB≥84dB≥84dBfunctionUSB/SD input, ...