Outdoor Speaker, Professional Loudspeaker, Sub-Woofer manufacturer / supplier in China, offering Bw-S15 & Bw-S18 Subwoofer Professional Passive Speaker Sub-Woofer, Bw-604 & S15p Professional Line Array Column Speaker Active Speaker, Lb-210 & B-21 Active Speaker Professional Speaker Loudspeaker Speaker Line Array and so on.