A "Bonus Item" refers to an additional product or feature that is offered alongside a primary purchase, often at no extra cost. This can enhance the overall value of the purchase, making it more appealing to consumers. Bonus items can include free samples, promotional gifts, or extra services that complement the main item. In marketing, bonus items are used as incentives to encourage sales and attract customers. For example, a retailer might offer a bonus item with the purchase of a new smartphone, such as a protective case or headphones, to enhance customer satisfaction and loyalty.