A Wi-Fi router is a device that allows multiple devices, like smartphones, computers, and tablets, to connect to the internet wirelessly. It works by receiving an internet signal from a modem and then broadcasting it as a Wi-Fi signal within a certain range. Wi-Fi routers often come with features like multiple signal bands for faster speeds and security options to protect the network. They are commonly used in homes, offices, and other places to provide convenient, wireless internet access throughout a building or area.

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