Changzhou Wujin Yueda Electroacoustic Equipment Co.,Ltd. Established in 1994,with a registered capital of 5 million yuan,a company of specialized in speakers and back-up alarms, located in Changzhou,Jiangsu, near Shanghai. We are an industrial and trading company, have own factory, professional R&D and sales team. Adhering to the core concept of “perfect quality system, high-quality products, satisfying customer service”, to provide guidance service for our customers.