1. GPSandLBS Dual Positioning Ways: If the gps signal is good, the device will locate via gps satellite, if not, the device will locate via LBS! Under GPS locating mode, the accuracy is 5-10 meters, under LBS locating mode, the accuracy is 100-2000 meters. 2. Realtime Tracking: You will can realtime track the device on maps via mobilephone, tablet and computer, and the minumum data upload interval is 10 seconds! 3. History Route Playback: The APP and web server can record the upload data of the device up to 6 months. 4. Long Standby Time: It has built-in 3.7V 20000mAh Li-ion battery, the standby time is up to 240 days and the working time is up to 15-20 days. 5. Powerful Magnetic: It has built-in powerful magnets, Easy to install. Overspeed Alarm: This alarm works only under continuous positioning mode.When the unit speed is exceed the speed you presetted, it will send message "speed alarm!" to the admin number every 5 minutes. Shock Alarm: After you the shake alarm setting,please keep the tracker being stationary for 5 minutes, then this function will start working. It will send SMS "sensor alarm!" to the admin number when the unit get shocked. Movement Alarm: When the units stays immobile in a place for 10 minutes, the user can set up the movement alarm by this "moveandpassord", then in case the device moved 500m it will send alarm SMS "Move Alarmand and longitude" to the authorized number. Geo-fence:set up a geofence for the tracker to restrict its movements within a district. The unit will send alarm information to APP and web server when it goes out of or get in this district. Name:GPS Tracker Colour:Black Material:ABS Package Contents: 1 x Charging Cable 1 x Tracker 1 x Chinese and English instruction manual 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.