The practical solution at home. No more cables! Not only can you connect your computers, tablets and mobile phones wirelessly to your modem, but also an increasing number of other devices such as your TV decoder (via a Wi-Fi Bridge), printer, thermostat, radio, etc.
Wi-Fi and mobile Internet. Don't confuse Wi-Fi, Wi-Fi Hotspots and mobile Internet (3G or 4G). What is the difference between Wi-Fi and 3G or 4G?