A wireless router transmits an internet connection using radio waves. The router takes the internet connection from a modem and converts it into a wireless signal that can be received by devices with Wi-Fi capability, such as smartphones, laptops, and tablets. The router then broadcasts the wireless signal to a limited range, which is usually determined by the strength of the router's antenna. The devices within range can then connect to the wireless signal and access the internet. The router can also be configured with security measures, such as a password, to prevent unauthorized access to the wireless network.