SHENZHEN Yishan Electronic Co., LTD. is national High-Tech Enterprise that manufactures good & high quality earphones and headphones, starting from 2012. The company provides the customized products and OEM service. Various new collections and design are coming out each month with the current styles. The factory own the proficient skill and updated machine, which commits to integrate headphones' design, production and marketing,most of the products developed have been certified by CE, ROHS, Reach, FCC, etc and dozens of patents have been granted. the company have own R&D department and mold injection department, We have been passed ISO9001, BSCI, Bureau Veritas certification.