Haikder Electronics Co,ltd is professional manufacturer that specialized in the developing, designing, manufacturing and marketing of various headphones and set top box products for domestic and international markets. It is located in Nanshan,Shenzhen and has a branch factory in Zhejiang, with more than 1000 well trained workers and 30 talented R&D members. Our company applys ISO9001 ISO14000 standard in all aspects, and we also has passed FCC, CE, RoHS certification and can offer Sisvel and DRM10 service. We have earned high reputation for our product's super quality and excellent customer service.