A jetpack is a wearable device that allows a person to fly by using jet propulsion. It typically consists of a backpack-like structure with engines or nozzles that expel gas at high speeds, creating thrust. Jetpacks are often powered by liquid fuel or compressed air, enabling short flights and vertical takeoffs. These devices have been featured in various forms of media, including movies and video games, and have captured the imagination of many. While they are still largely experimental, advancements in technology are making them more practical for potential uses in search and rescue, military applications, and recreational activities.