Shenzhen Yidahang Electronic and Science Co., ltd was found in Match 2004, in the Shenzhen Nanshan High-tech Zone. It's a high-tech company which contains the self-determinate invention, manufacturing, sales and service. The company commit itself to the deeply invention focusing on the customers' needs and wants. The leading production, GP2000 Global Position Searching Tracking and Navigation System, was through continuous debugging and improving and was for sale in August 2005. It's famous for it's high dependability, high accuracy, low waste, easy operation, small volume and low cost, therefore, it gain a very good comment of the customer.