1.跟踪的实时定位系统。发送一条短信到GPS跟踪器，跟踪器立刻返回一条信息，内容是经纬度2.电子栅栏：设置你想设置的范围，超出范围立刻发警报给手机3.通话：可以直接监听跟踪器周边声音。也可以实现双方通话，就像一部手机4.SOS按钮：按SOS按钮，GPS跟踪器将发送信息给相关人的手机，提示报警5.超速戒备：当跟踪的目标移动超出有限的速度，它将送超速戒备到授权数字。1.Real-timelocatingandtracking.SentaSMStotheGPStrackeranditwillreturnyouthelongitude,latitudecoordinateandmovingspeedofthetrackingtarget,thenyoucanfindoutthelocationaccuratelythroughthefreeGoogleMaporothermapsoftware.2.Geo-fence:Itwillsendanalerttotheauthorizednumberswhenitbreachestherestrictedareathatyousetupbefore.3.Twowaytalkingcommunication:YoucantalkwiththetrackingtargetviatheGPStrackerjustlikeacellphoneandalsocanlistentothesoundaroundtheGPStrackerin5metersecretly.4.SOSbutton:presstheSOSbuttonandtheGPStrackerwillsendahelpalertandexactlocationtotheauthorizednumbersforimmediaterescue5.Overspeedalert:Itwillsendanoverspeedalerttotheauthorizednumberswhenthetrackingtargetmovesexceedoftherestrictedspeed.