Shenzhen ChengYuan yu technology co., LTD., is committed to the research of multimedia audio products, the production scale expands rapidly, the home - to set production, development and sales for the integration of professional audio products manufacturers, launched its own brand "ChengYuan yu"; The design concept of the company in line with strives for perfection, to create a variety of audio and video products, and has set up a market information center, product design center, product research and development laboratory, domestic own brand marketing, brand promotion, marketing, international trade...[More]