Our company, Topten Electronics Technology Limited, a joint-stock and high-tech enterprise, is one of the best professional manufacturers and exporters which specializes in GPS/GSM advanced car alarm system, GPS vehicle tracking system, tracking device & other automotive electronics. Our key product - GPS Tracking, GPS Tracker, GPS Tracking Device, GPS Vehicle Tracking System is an advanced and brand new car security product, it has been granted with patent by China National Patent Bureau, and it has strictly passed the test held by research center of security products of China Public Security Bureau. It is warmly welcomed by our customers from domestic & overseas. Our ISO9001 certified factory is equipped with advanced production and test equipments. Our products (GPS Tracking, GPS Vehicle Tracking System) have been granted with CE and FCC certificates. We are doing OEM &ODM projects with some world famous customers. You are sure to be satisfied with our professional OEM & ODM service. At the same time we always provide our customers with most competitive price and prompt delivery. Pls let me know without hesitation if you are interested in any of our product. Waiting for your news!