Specification: Dimensions:W515*D272*H300mm Frep.Response: 60-20k Hz Impedance: 6ohm Sensitivity: 95±dB Signal Nosie Ratio:≥88dB Rated Power:130w*2 Net weight: 45kg/pair Feature: Superior audio performance with low noise and powerful and natural selected echo effects. Effect with delay time, echo depth and level controls Design for longest life and maximum reliability Brand new digital doulbe Karaoke function