A product bundle is a marketing strategy where multiple products are sold together as a single package. This approach often offers customers a discount compared to purchasing each item separately. Bundling can enhance the perceived value of the products and encourage customers to buy more. Companies like Amazon and McDonald's frequently use product bundles to increase sales. For example, a fast-food meal might include a burger, fries, and a drink at a lower price than buying each item individually. This tactic not only boosts sales but also improves customer satisfaction by providing convenience and savings.