Foshan Langdu Intelligent Appliance Technology Co., Ltd. has been striving to be the leading manufacturers of Public Address Systems and Home Automation Audio Systems since 2002, The aim of our company is to make our brand BSPH well-known to every corner of the world and make good relationship with our every clients. Advanced technology and careful selection of designs, components and workmanship ensure reliable quality of our BSPH brand products, during the decades of exporting and ...