This mini tracking device can locate and get the postion of your vehicle remotely via SMS or GPRS. It is easy to install; no wiring is needed. And it is convinent to move it from one car to another.
Features:
Obtain location information via SMS or GPRS.
Real-time tracking, upload location information intelligently (support for Android IOS web system).
Easy installation, directly insert into the car OBDII interface.
Built-in vibration sensor, realization vehicle anti-theft intelligently.
ACC the ignition signal detection, vehicle status prompted;
Specifications:
Material:ABS
Network:GSM/GPRS
GPS Chip:UBLOX
GPS sensitivity:--159Dbm
Band: 850/900/1800/1900Mhz 
Operating temperature:-20° to 55° C 
Operating Humidity:5% to 95% Non-condensing
Location Accuracy:10 meters
Operating Humidity:5% to 95% Non-condensing
GPS locating time:Cold start:35-80s/Warm start: 35s / Hot start: 1s
Item Size: Approx. 5 * 4.5 * 2.5cm / 1.9 * 1.8 * 1.0in
Item Weight: Approx. 42.5g / 1.5oz
Package Size: Approx. 14 * 8 * 3cm / 5.5 * 3.1* 1.2in
Package Weight: Approx. 115g / 4.1oz
Package List:
1* OBD GPS Tracker 
1 * User Manual
Note:
SIM card is NOT included.