波特曼M2M系統提供了先進的GPS / GPRS / SMS跟踪的的Andriod OS服務
Portman M2M system is a real time GPS/GPRS tracking service. User must choose any of the advanced Portman Tracking devices to be installed in the vehicle, then you can use your Portman M2M system to control/monitor it. Android OS 2.2 or above is necessary. Up to 20 tracking devices can be monitored at the same time.