Features:
Remote control with alarm on/off function.
GPS/GSM station positioning.
SMS/GPRS/internet network data transfer.
Point-to-point， point to group， group-to-group monitoring.
Continuously auto track upon different time and distance intervals.
Absolute street address with GSM network.
SD card for data logging.
Support 9-36V， so it can be installed on Bus， taxi， truck ，personal car， business car etc.
Maximum 5 cell phone numbers are allowed to admin the tracker.
Other functions: SOS， Geo-fence， movement alarm， over speed alarm， accident alarm， voice monitoring etc.
Cut off the oil and power system.
The on-line web page tracking software has one month free trial， after that it is about 10USD per year.

Optional fuction:
Shock sensor and siren.
Note: if want inside fuction include shock sensor or siren ，pls contact the sales before buying ，the price is difference.

Specifications:

Content	Specifications
Network	GSM/GPRS
Band	850/900/1800/1900Mhz
GSM/GPRS module	SIM900B
GPS module	SIRF3 chip
GPS sensitivity	-159dBm
GPS accuracy	5m
GPS start time	Cold status 45s? Warm status 35s Hot status 1s
Voltage of car power system	12V ~ 24V
Backup battery	Rechargeable and changeable 3.7V 800mAh Li-ion battery
Storage Temperature	-40°C to +85°C
Operation Temperature	-20°C to +65°C
Humidity	5% ~ 95% non-condensing
Item size	10.5 * 5.5 * 2.5cm (4.1 * 2.2 * 1.0in)
Item weight	112g/4oz
Package size	19.5 * 12.8 * 5.8cm (7.7 * 5 * 2.3in)
Package weight	617g/1.4Lbs

Item Includes:
1 * GPS tracker
1 * Remote control
1 * Microphone (1.5 meters)
1 * GSM antenna (3 meters)
1 * GPS antenna (3 meters)
1 * Relay (12V/40A to 24V/40A according to vehicles)
1 * Harness (10 Pin)
1 * User manual
1 * CD with software