The Coban 403A operates on the existing GSM/GPRS network (850/900/1800/1900 Mhz) / WCDMA (3G): 850/1900/2100 / Mhz and GPS satellites. The tracker can locate and monitor any remote target via SMS or the Internet, and works well with commercial and urban asset fleets. It can update the firmware over the air (OTA), and has real-time tracking, door/ACC/shock sensor alarm, power-off alarm, engine stop and resume.