RMS: 2W*2 Frequency Response;150Hz-20KHz S/N Ratio :50dB Output Impedance :4ohms Sensitivity :250mv Speak Unit :2"full range drives Dimention:W100*H250*D100mm Control box: W170*H45*D75mm Color: All kinds of colors available! Dimention:W100*H250*D100mm Control box: W170*H45*D75mm Color: All kinds of colors available!