This computerized, dog-operated, ball launcher is bound to be adopted by owners of fetch-loving dogs in want of a reprieve for these tired arms. This option makes it perfect for each indoor and outdoor use. After fifteen minutes of steady play, the PetSafe Automated Ball Launcher Canine Toy turns itself off for a similar amount of time with a purpose to cease your dog from over exerting itself and becoming exhausted. Tennis balls are included with this and are of the standard shape and size, so are straightforward to replace once they turn into worn out. Movement Detector: A motion.