A The company is mainly engaged in R&D and production, brand sales, engineering , international trade and ODM, OEM cooperation of professional audio engineering products, as well as research and design of specific engineering projects, product supervision, technical training, installation and commissioning and other supporting services.

A The company is mainly engaged in R&D and production, brand sales, engineering , international trade and ODM, OEM cooperation of professional audio engineering products, as well as research and design of specific engineering projects, product supervision, technical training, installation and commissioning and other supporting services.

A The company is mainly engaged in R&D and production, brand sales, engineering , international trade and ODM, OEM cooperation of professional audio engineering products, as well as research and design of specific engineering projects, product supervision, technical training, installation and commissioning and other supporting services.

A The company is mainly engaged in R&D and production, brand sales, engineering , international trade and ODM, OEM cooperation of professional audio engineering products, as well as research and design of specific engineering projects, product supervision, technical training, installation and commissioning and other supporting services.