Perfect for your beloved cat's lack of exercise and stress relief! 3 movement patterns: When the switch is turned on and a shock is applied, it moves steadily for 11-19 seconds, then stops once. When another shock is applied, it starts moving in the next pattern. Uses 3 AAA batteries (Batteries not included) Only used a few times, but it is a used item, so please understand before purchasing. (^^) #CatTower #CatToy #Electric