TP-Link wireless router M5250 Mobile MIFI (WiFi Hotspot, 2000mAh internal battery, SIM card slot, microSD card slot, HSPA +, 3G) (optional)
Reinlegen card switch and you're online. Both mobile phone, Microsoft Surface and iPad. You have to load any software. From SIM Card Pin Deacktivieren, then it will come right away. Small and put in your pocket and it is already running.