A Wi-Fi booster, also known as a Wi-Fi range extender or Wi-Fi repeater, is a device that helps to extend the coverage area of a wireless network. It works by receiving the Wi-Fi signal from a router and then amplifying and rebroadcasting it to areas of your home or office where the signal may be weak or not present. This can help to eliminate dead spots, improve the overall coverage and speed of your Wi-Fi network, and allow you to connect to the Internet or other networks from more areas of your home or office.

A Wi-Fi booster is especially useful in larger homes or office spaces where the signal from a single router may not reach all areas, or in buildings with thick walls or interference from other electronic devices that can weaken the signal. By using a Wi-Fi booster, you can ensure that your devices have a strong, reliable signal, no matter where you are in your home or office.