The device can be turned off through the APP on the 's cell phone The device turns off/on the GPS and data upload in the time range specified through the APP on the 's cell phone Inquire the moving of the device in the past 3 months anytime and anywhere Designate an area on the map by setting the device as the center point and the alarm will be triggered off immediately once the user of the device goes into or out of this area The user's specific location can be inquired through the cell phone APP or the computer Product function Multiple Positioning Mode: GPS+ AGPS+LBS+Wifi+BDS 4G Bands: 4G4G: LTE-FDD:B1/B3/B5/B7/B8/B20 , LTE-TDD:B34/B38/B39/B40/B41 Track: The user's specific location can be inquired through the cell phone APP or the computer Fence: Designate an area on the map by setting the device as the center point and the alarm will be triggered off immediately once the user of the device goes into or out of this area PlayBack: Inquire the moving of the device in the past 3 months anytime and anywhere Remote Power-off: The device can be turned off through the APP on the 's cell phone Remote Restart: The device can be restarted through the APP on the 's cell phone Intelligent Power Saving: The device turns off/on the GPS and data upload in the time range specified through the APP on the 's cell phone Contacts: save three SOS numbers, the device will call the numbers if long press SOS button. Color: As Shown Material: plastic Package Contents: 1 x GPS locator 1 x collar 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.