VANSONIC, located in Jiaxing Economic and Technological Development Zone, Zhejiang Province, is an advanced manufacturing enterprise integrating the research, development, production and sales of various types of automobile loudspeakers and related equipment. VANSONIC has a professional technical development team. The research and development team has been engaged in acoustic and structural research for more than 20 years, and has accumulated a wealth of technical development experience and achievements. It has developed more than 200 new products, and has been granted more than 10 utility model patents. The company has been rated as a national science and technology small and medium-sized enterprise and a science and technology small and medium-sized enterprise in Zhejiang Province. At present, the company is expected to become a T1 second-tier supplier (professional level). In the front clothing market, it is seeking to reach cooperative relations with well-known brand manufacturers such as Harman, Pioneer and Yamaha. In the aftermarket, it has provided many series of high and medium range...