Here's what each icon means on your MiFi display:

1. 3G Signal strength - to get the best signal, move your MiFi to a position where at least three bars are showing
2. Network speed - shows whether you have a 3G or the faster HSDPA connection speed
3. Wi-Fi connections - shows the number of Wi-Fi devices connected to your modem
4. Internet connection - shows you're connected to the internet
5. Text inbox - shows any unread text messages in your dashboard inbox
6. Battery charge - shows how much charge the battery has left
7. Network - shows the network you're connected to and your current connection status
8. Data used - shows how much data you've used in megabytes (MB) this session
9. Connection time - shows how long you've been connected to the internet this session
10. International roaming - shows when your MiFi is being used outside of the Three network (3UK).