Complex sentence: Possible uses could be advertising directed at particular sections in a store, like announcing that apples are on sale to anyone who walks in front of them while someone a few feet away looking at the pears hears nothing at all.
Split into simpler sentences: Possible uses could be advertising directed at particular sections in a store. Like announcing that apples are on sale to anyone who walks in front of them while someone a few feet away looking at the pears hears nothing at all.