... .ODM OEM 4.Be alibaba member over 6 years 5.high quality 5.1 Home Theatre SpeakerHT-502 Specification: Subwoofer: 1,Power ... ,Impedance :4-8Ω 4,Sensitivity: 80dB 5,Frequency Response: 20HZ-120HZ Satellites: 1,Power: 15W * 5 2, Speaker unit: 3 * 10 Treble ... * 5 # 3, Impedance :4-8Ω 4, Sensitivity:85dB ...