Loudspeaker, Amplifier, Conference System manufacturer / supplier in China, offering Magnetic Track Speaker with Dual System Compatible Ultra Slim Design for Retail Stores Galleries Cafes and Smart Home Audio System, 3/6W IP66 Rated Rimless Ceiling Speaker with Quick-Install Design for High-Traffic Spaces & Underground Parking Lots, Ultra-Thin 85mm Ceiling Speaker with Passive Radiator Mini Mount 3.5" Woofer for High-End Boutiques/Luxury Speace and so on.