SMS : this can reply the position information to the admin number with map link. listening device GPS, AGPS and LBS Postioning Admin number setting: after setting for the admin number, all SMS operations to the device just can under this number. Movement alarm: once you set this function, the send alarm information to the admin number when the movement distance up to 500m. GPS Geo-fence Built-in powerful magnet, easy to be hidden and installed Check the history of route: the web server for this device can save half year history data, you can download it as format document. GPRS Voice monitorVehicle GPS . free web platform and APP gps car . Overspeed alarm GPS Shake alarm: after set this function, if the keep stationary for 5 minutes, this function start working. Then once the get shocked, it send a SMS "sensor alarm!" to the admin number. acker 1Low battery alarm: send alarm information to you when the voltage lower than 3.5V. Mini GPS 13. Sleep mode by time and sensor gps logger; Sleep mode by time: for example, you can set the time interval as 5 minutes, then the only work for 5 minutes after being waked up and back to sleep mode again. Besides, under this mode, GPS shut off and GSM work under low consumption mode. The SMS commands and incoming call can wake up the . Sleep mode by shock sensor: after you set this mode, if the device has no shock for 5 minutes it work under "sleep by shock" mode automatically, the GPS shut off and GSM work under low consumption mode. The SMS commands, incoming call andvibration can wake up the . tk905 Car Vehicle GPS Car GSM Magnet Hidden Waterproof 1Real-time online via web server and APPVehicle 15. Waterproof IP65 design 16. GPS chipset 17. Super large built-in 3.7V 5000mAh rechargeable Li-ion battery, the standby time can last around 90 days track<br