Main Features:
Size is similar as one credit card.
Tracking via SMS or GPRS(TCP/UDP)
Current location report
Tracking by time interval
Get street address by SMS request
Position logging capacity up to 260,000+ waypoints
SOS panic button
Geo-fencing control
Low battery alert
Speeding alert
Engine Cut (optional)
I/O: ACC input, SOS, output.
Save GPRS cost by ACC(Ignition) 
Analog Input: 1 x 10 bits resolution analog inputs, can connect to fuel sensor and temperature sensor.
Only support realtime tracking with LiveGTS.
Support sending SMS via tracking platform LiveGTS