? What is a WiFi enhancer? As its name indicates, it is any device that serves to give power or boost a WiFi signal and make it reach a farther area. On many occasions it is necessary to take the WiFi connection of the router to another room or to another house. There are two types of enhancers or WiFi amplifiers, those that are installed inside and those that by their characteristics of resistance to the weather and reach can be located to the outside.