Coiwin was established in 2005, is a research and development, production and sales of audio manufacturing company. As the exploration of the international market and the development and improvement of company,we successfully registered a company - Hong Kong Coiwin development Limited company in 2011 and started the''Coisoun''new brand. Focused on the audio industry from early days home theatre speakers developed to now digital speakers,we are sticking to innovation and quality all the time. ...