4G LTE-FDD and 2G GSM or GPRS: This GPS Tracker supports the latest 4G LTE FDD network on multiple bands for operation globally and also stay with a fallback to 2G GSM or GPRS, can work perfectly around the worldwide countries. Positioning by GPS and LBS, Real-time Tracking on Google Maps GPS Positioning Accuracy : 5-10m LBS Positioning Accuracy: 100-1000m 350mAh Backup Battery: With 350mAh big backup battery ,the tracker can last around 2-4 hours once the external power was disconnected. History Route Playback: User can track the history route of the device up to 6 months via both the Web and APP. Angle Uploading: When turning, the device will upload a GPS data in order to reflect the details of turning. the uploaded positioning data will be more denser and the trajectory query is more accurate. SIM Card Balance Enquiry: The balance of the SIM card in the tracker is available for checking , whenever you want to know it, you send sms to inquiry will be ok. Door Open Alarm: If someone opened the door of your car, the tracker will send alarm information to you. ACC ON or OFF Alarm: If tracker detect "ignition on" or "ignition off" signal from ACC wire(white wire), tracker will send "ACC on or offandandlongitude" to authorized number to tell you the vehicle has been started or stopped. Blind Area Alarm: If the tracker lost fix to GPS satellites , it will send "No gpsandandlongitude of the last know position" to the authorized number. SOS Emergency Call: With SOS panic button , you will can make SOS call out once met emergency situation during driving. Manually Cut Off or Resume Fuel: Multiple Alarms, Vibration Alarm, Overspeed Alarm, Power Disconnection Alarm,Geo fence. This tracker can work with the optional accessory fuel sensor to detect the fuel level of your vehicle. Specification: GPS403BColor: As Shown Material: plastic Package Contents: 1 x GPS Tracker Kit 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.