Roadtom technologies Co., Ltd, established in March, 2006. We aimed to provide GPS service (position, navigation, supervision, security, tracing), portable communication, internet, Entertainment, multimedia teaching, DVB and such services. We aimed to connect GPS with portable communication and internet, endow the GPS products with SIM and IP V6, by digitizing the country and city, to make GPS serve people's daily' life. We aimed to develop kinds of consume electronic products in these fields on the base of multifunction device and professional product (single function products). On the base of developing consume electronic products, we also provide complete solution and marketing platform.