1,acoustics pa sound box systems 2,MIC input, USB/SD input,FM Radio 3,colorful lighting disco 4.EQ,Treb,Vol,Bass name acoustics pa sound box systems model number STN-015output power/RMS 150Wx2speaker unit Tweeterx4pcs+15"impedance 4Ωfrequency response 20Hz-20KHzS/N Ratio ≥72dBseparation ≥84dBfunctionUSB/SD input,FM radio,LED light on wooferdimention/mm 5350x400×800 Color black or otherpacking ...