The WiFi booster grabs the signal being transmitted by the access point and amplifies it for better use. Usually, boosters are coupled with stronger antennas that help broadcast the signal further and cover larger areas. The location of the WiFi booster is extremely important. You want to place it close enough to the access point to receive a. What Is Wi-Fi? Wi-Fi is a wireless networking technology that allows devices such as computers (laptops and desktops), mobile devices (smart phones and wearables), and other equipment (printers and video cameras) to interface with the Internet. It allows these devices--and many more--to exchange information with one another, creating a network.