1. Location Based service also named A-GPS, when tracker in underground or tunnel ,can get location by AGPS.
2. Real time tracking it by cell phone and platform . Also can support get location every 5 seconds, and the GPS accuracy is 5m .
3. Can check and replay within one year history of route of device ,by web monitor center.
4. Can hear the voice around the tracker by cell phone . Also support communication with the tracker by cell phone.
5. SOS Alarm.
6. Power Saving Mode.
7. Check the location with google map on mobile.
8. Geofence and movement alert.
9. Geofence and movement alert.
10. Low Battery Alarm.