Shanghai Zhongchangjiang Telecommunication Technology Co.,Ltd is a subsidiary of Wenzhou Changjiang Automobile Electronic System Co., Ltd. The headquater covers business of all car accessories and has cooperated with a lot of famoud car brands, such as GM, VW, Audi,SGM, Changan Auto, Volkasgen, etc. With great finance support and great production capacity, our company has developed quickly in recent decades.




The subsidiary, unlike the headquaters, mainly focuses on the production of radiation free earphones. Our chairman, Mr.Zhu has found out that the radiation from mobile phones has become a big threat to people's health, therefore, he decided to devote himself in to providing human beings with "healthy" products, preventing them from the danger of radiation. After decades of R&D, our self-owned brand, ibrain has gained patents from nine countries, becoming the only legal party to produce radiation free earphones. Our products has been exported to a lot of countries, such ...[More] America, England, France, Australia, Japan, Canada. At the same time, with great product quality as well as satisfying after-sale service, the products have won great reputation in the world.