Our company is a professional manufacturer and r&d of musical instrument speakers and multimedia speakers. it has two subsidiaries, such as Shanghai sanxun electronic technology co., ltd. \ Shandong walter electronics co., ltd., and owns many private brands, such as METAL\ sanxun SANXUN\ SANTUO santuo, covering an area of more than 3,000 square meters. the company has a full set of automatic production equipment, RCT online detector, automatic visual audio analyzer and other detection equipment. Over the past ten years, we have cooperated with many domestic and foreign customers in OEM, and accumulated rich experience in production and research and development.