1,active PA Sound box 2,MIC input, USB/SD input,FM Radio 3,double super woofer 4.EQ,Treb,Vol,Bass 5.woofer with LED name active PA Sound box WITH USB inputmodel numberPFW-280 PFW-210PFW-220output power/RMS100Wx2200Wx2400Wx2speaker unitTweeter+8"x2Tweeter+10" x2Tweeter+12"x2impedance4Ω4Ω4Ωfrequency response20Hz-20KHz20Hz-20KHz20Hz-20KHzS/N Ratio≥72dB≥72dB≥72dBseparation≥84dB≥84dB≥84dBfunctionUSB/ ...