Product advantages 1. Waterproof 2. Multiple ways to implement tracking: free monitoring center software, covering global maps, real-time computer tracking; mobile phone query map; GOOGLE EARTH tracking. 3. Power saving mode 4. Dimensions: 94mm x 46mm x 31mm 5. Support positioning without a positioning server: real-time latitude/longitude/time/speed can be queried, and real-time location information can be queried by manually inputting latitude and longitude using public map software 6. If the target you are querying enters the underground parking lot or other GPS blind spots, the tracker will report the last location information of the target to you. 7. Timing and timing tracking function. 8. Authorized number add/delete function. 9. Electronic fence, a fixed area can be set, and an alarm will be issued if it exceeds the fixed area. 10. Displacement alarm: When the tracker stays down, it can be fortified, and once it is displaced, it can alarm the authorized number. 11. Overspeed alarm: The monitored target can be set to drive at a certain speed, and the alarm will be triggered if the speed exceeds this speed. 12. Low battery alarm function. 13. Super long standby time