2016 cheapest OBD vehicle gps tracker with APP

1. Directly connect with the car OBD port.
2. Built-in GSM, GPS antenna. 
3. Support SMS / GPRS / Internet Network data transmission. 
4. Set multiple functions of security, tracking, monitoring surveillance, emergency alarms and management in its entirety.
5. Auto track continuously:track by time and distance interval.
6. Location based service(LBS) + GPS double real time tracking solution. 
7. Sleep by shock sensor mode, sleep by time mode. 
8. Get Absolute street address by SMS.
9. Arm/disarm. 
10. Shock alarm.
11. Geo-fence. 
12. Movement alarm,overspeed alarm,low battery alarm.