1.High performance chip of SiRF III generation ed . 2.High sensitivity, short time localization,with the maximum simultaneous reception of 20 satellites' signals. 3.High pointing accuracy with the minimum error at 5 meters. patible with Bluetooth 2.0 Standards and CLASS 2. 5.Support Serial Port Profile (SPP). 6.With the lowest power consumption, it can continuously work for more than10 hours. 7.3-different-color LED facilitates the observation of receiver's active status. 8.It is with the miniaturization and the human nature design. And it is artistic and easy to carry. 9.The elastic design makes it possible and easy for people to use personal navigation, automobile navigation, navigation, vehicles management, and the map service.