3G network, c ould work worldwide: HSDPA/UMTS/EDGE/GPRS/GSM UMTS1900/850/2100/900 MHz; GSM850/900/1800/1900\
 20000mAh REMOVABLE Lithium battery;
GPS+GSM+WIFI positioning;
Offline logger function, build-in Micro SD card and support up to 32G byte data;
Remote audio Monitoring function with DSP within five meters of effective;
Drop-alert sensor built-in;
IPX7 Water-proof;
Super Magnetic built-in;
Instant call alert or sms alert for anti-theft when detect the vehicle moved;

Built-in GPS/GPRS and Antenna;
Web based Real-time tracking and replay or locate via SMS;
Built-in watchdog CPU to avoid system crash;
Built-in motion sensor to save power;
Size:  160*64*47  (mm)