The ZTE MF79N  is a mobile router aimed at users who need portable internet connection via mobile telephony. It can be used to provide wireless connection to devices such as laptops, tablets, smartphones, and other devices that need internet access outside of typical Wi-Fi networks.

Typically, this type of mobile router is used when you are in areas where there is no available fixed internet connection, and you need a portable solution to connect to the internet via your mobile network provider's mobile network.