1. It is not only a GPS tracker, but also a car alarm 2. Arm/disarm by SMS remotely, or by the remote controller 3. Track on or by time interval via SMS/GPRS 4. Live track the car by website 5. Check the car's real physical address(such as city name, street name...) Vehicle Movement Alarm and Vibration Alarm: Your mobile phone receive an alarm when the car is in collision, passing a trailer or making a turn. When our GPS tracker vibrates several times, a vibration alarm be triggered. If there is no ignition (ACC OFF) after 3 minutes, the equipment immediately send a vibration alarm message. Geography Fencing System: You can set geographic fence from our APP or website. When your car leaves the geographic fence, your mobile phone receive an alert notification. Positioning Mode:GPS+Beidou+LBS Positioning chip:AT6558R Battery capacity:55MAH Working voltage:9V-95V Communication network:Micro-SIM Colour:Black Material:ABS Package Contents: 1 * Car GPS Tracker 1 * wiring harness 1 * microphone 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.