Global real-time multi-precision positioning IP67 rated waterproof 750mAh -capacity battery can be set to a of positioning modes, to achieve ultra-long standby time 90-day history track playback at any time, at a glance Weighs only 35g, easy to carry 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 2G Bands:GSM:B3/B5/B8 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. Colour:Blue Material:ABS+PC Size:4.8x4.8x1.8cm Package Contents: 1 * 4G GPS locator 1 * cord for hanging 1 * 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.