A tennis ball launcher is a device designed to automatically throw tennis balls for practice or play. It can be used by players of all skill levels, allowing them to improve their hitting accuracy and reaction time. These launchers can vary in size and complexity, from simple handheld models to advanced machines that can adjust speed and angle. Many tennis ball launchers are equipped with features like remote controls and programmable settings, enabling users to customize their training sessions. They are commonly used by both recreational players and professionals, making them a valuable tool for enhancing tennis skills.