1）当你需要在一个拥挤的停车场里找到自己的车； （2）当你在户外探险时候需要找到某个曾经去过的地方（返回出发点）； （3）当你需要其他定位功能；这款shuoying迷你型GPS定位系统可以帮上你的忙 最多可存储三个地址； 使用高灵敏度GPS接收系统 自适应；； 仅需两个AAA电池（需自行另购） Specification ElectricalCharacteristics GPSchipset Highsensitivitysinglechipsolution Frequency L1,1575.42MHz C/ACode 1.023MHzchiprate Channels 48channelsall-in-viewtracking Sensitivity Tracking:-158dBm Display LCD Type:ICON;Diameter:30mm;Shape:Round BacklightColor White Power BatteryType AAAX2orNiMH OperatingTime 6hours PhysicalCharacteristics Dimension 80X66X23(mm) NetWeight 42grams,withoutbatteries DynamicCondition AccelerationLimit Lessthan4g AltitudeLimit 18000meters(60000feet)maximum SpeedLimit 515meters/second(1000knots)maximum JerkLimit 20m/sec**3 AcquisitionRate HotStart 1second(average) WarmStart 38seconds(average) CordStart 42seconds(average) Reacquisition 0.1second(average) Antenna GPSAntennaTypes 15X15mm,PatchAntenna Accuracy PositionHorizontal 10meters,2DRMS 1-5meters3DRMS,WAAScorrected VelocityAccuracy 0.1m/sec TimeAccuracy 1micro-secondsynchronizedtoGPStime Temperature OperatingTemperature -15°C~60°C StorageTemperature -30°C~85°C Humidity Operationalupto80%non-condensing Authentification FCC USA(CoversrequirementsforCANADAICES-003) CE Europe