... 3) high output power USB 2.0 outdoor speakerOutput(RMS): P.M.P.O 3000WImpedance: 4ΩFrequency response: 55Hz--18KHz(-3dB)Power: AC ... Tweeters, 2pcs 8" woofersCarton Dimension(mm): 560*360*560Carton Meas(m³): 0.1098Pc/CTN: 1G.W.(kg): 22Loading Qty(sets)20 ...