There is a home show, a bridal expo or a big community festival this weekend in Metro Detroit, packed with exactly the people you want as guests. You cannot staff a booth at every event, and the folks walking past will forget most of the names they see by Monday.
Geofencing draws a digital line around that event, a neighborhood or a set of addresses and shows your ads on the phones of people who were inside it. We pick the places that match your guests, build ads for that moment and keep showing them for the days that follow.
The next week, people who were at the event see your name while scrolling or reading the news. Some visit your site, some call, and you can see how many of the people inside each fence later came through your door or picked up the phone.