Shenzhen Zhong Xun Chuangzhi(Topin) Technology Co., Ltd, which is a 5 year's professional GPS tracking device manufacturer integrated R&D,production,sales and service all together,we are one of the leading mini GPS tracking device suppliers in China,almost 20% of the mini GPS tracker produced in China come with our famous ZX series GPS PCB board. Our head office,which is also our R&D and sales Dpt,is located in Chuangye RD,Baoan District,Shenzhen,China,which is nearby Shenzhen Baoan international airport,and our SMT GPS PCB factory is located in Yingrenshi Industrial Park,Shiyan Town,Shenzhen,China.Currenlty,our products cover: GPS tracker PCB,personal GPS tracker, kids GPS tracker, pet GPS tracker,car charger GPS tracker, OBD GPS, hidden GPS...ect,after several year's improving and upgrading, all our products were tested by our global customers and proved our products have wide compatibility and of reliable quality,moreover,we are able to help you to transfer the communication protocol and enable our products working with your own server.Our star products: GPS GSM PCB: ZX612,ZX302,ZX303,ZX620, 3G and 4G GPS PCB(ZX808,ZX810,ZX371) are developing and testing, they will coming soon.kids GPS tracker: G01,G02,G03,G05,G12SPet GPS tracker: P02,P03,G12P(waterproof)Car charger GPS tracker: G06,G07magnetic car GPS: G11U-disk tracker: G08USB cable tracker: G09Student ID card GPS: G10Our APP, 365GPS and GPS365(latest version),which support multilanguages,such as English/French/Russian/Spanish/Portuguese/Polish ect and free free for Android/IOS smartphones,moreover,with funny UI and practical functions,it's been famous and popular with customers all over the world.Our service:1. Firmwear service: we are able to develop the GPS PCBA with your own features and technical requirement.2. Software service: we are able to develop your own server and APP for the GPS tracker.If you have interest in our App, if you need,we are able to offer our API port as well.As a specialized high tech innovation enterprise, Topin is aim in smart GPS devices solutions for China and other regions overseas,we believe our products will bring you more convenience and happiness to your family and life.Welcome to know us and visit us for futher cooperation.