Coiwin Shenzhen City Digital Technology Co., Ltd. was established in 2005, is a research and development, production and sales of audio manufacturing companies. At the same time in order to further explore the international market, expand the strength of the company in 2011 and successfully registered a company - the record surplus of Hong Kong Limited, and have Coiwin own brand.

Record surplus to focus on the audio industry, in order to ensure the implementation of the company's long-term ...