1) USB 2.0 sound speaker uses in stage,shop,disco,KTV 2) high output USB sound speaker with USB,SD,FM,remote,display Output(RMS): P.M.P.O 3000WImpedance: 4ΩFrequency response: 55Hz--18KHz(-3dB)Power: AC~220V/50HzCarton Dimension(mm): 650*375*575Carton Meas(m³): 0.1401Pc/CTN: 1G.W.(kg): 21.8Loading Qty(sets)20'G/40'G/40'H: 206/414/485USB 2.0 sound speaker plays in stage, shop, disco and KTVHigh- ...