Loudspeaker, Amplifier, Conference System manufacturer / supplier in China, offering Lt Series Outdoor High-Voltage Column Speaker with Long-Distance Transmission Engineered for Urban Park PA System & Bus Terminal Announcement, IP44 Column Speaker with Hi-Fi & Commercial PA, Redefining Acoustic Environments for Shopping Malls Convention Centers and Exhib, 70-100V Hi-Fi Column Speaker (IP44) with Indoor/Outdoor Mounting Optimized for Commercial Atriums, Hotel Corridors and Airport Terminal PAS and so on.