Ryoko is a pocket size wireless modem, which creates a Wi-Fi network around itself using 4G LTE. We have tested another one with our phones and it works great. This would be excellent for hunters or travelers who venture off the main roads and especially if you have T-Mobile, this would give you access to the AT&T system should you lose your T-Mobile signal. All you do is connect your phone to the WIFI signal from this device just as you do at home with your WIFI router/modem. Basically, you're taking your home WIFI with you (not really but the idea is the same).