Founded in 1994, Shenzhen V-Sun Electronics Co., Ltd specializes in the research, development, design and manufacture of GPS (Global Positioning System) products, Bluetooth products and tracking device. We have modern factory, advanced production equipment and many professional, experienced engineers focus on the R&D (research and development) of GPS and tracker as well as an outstanding sales team. Under the support of international GPS core technology; we are gradually fashion a standard and normative system of development, production, sale, marketing and service of GPS hardware and software. Based on the independent production of GPS modules, GSM and Zigbee modules, our main products a ... more