Shenzhen Castel Wireless Telecommunications Co., Ltd. (hereinafter referred to "castel wireless"), is a subsidiary of casil telecommunications holdings limited (Hong Kong stock listed, listing no.: 1185, a co-founder of China GPS association). Our company has been devoted to the application of GPS technology, RFID technology and wireless broadband access technology with the research and production of related products.

"Castel Wireless" owns independent intellectual property of CB-access 5.8GHz broadband wireless access system products, which have been widely used in commercial sectors in 27 countries and regions in the world. Mpip series GPS vehicle tracking system have been widely applied in customs, logistics, public transportation and taxi fleet management, even in vehicle service project of Beijing 2008 olympic games. RFID car alarm has been widely promoted to America and Europe.

With 10, 000sqm production facilities, "castel wireless" produces and manufactures wireless communication products, wireless broadband, GPS trackers, GPS navigators, GPS modules, GPS receivers and car alarms. Our company attained ISO9001: 2000 quality management system certification in 2006.