The cat toy-rolling ball changes direction automatically when colliding with walls, chairs, doors, etc. While the ball rolling, the feather wand is moving quickly, which makes your cat chase the ball around and fight the feather to increase the fun. It creates the charm of true hunting prey, inspired by the cat's natural instinct. An enjoyable cat toy ball for your furry friend. USB Charging: The smart cat toy has rechargeable batteries, no need to replace the battery. Plug in 1.5 hours, and enjoy fun for many hours. Even if the owner is not at home, the robotic interactive indoor pet toy can accompany the cat. Insert the feather wand into the hole to secure it. When you hear a click, the funny cat stick has been successfully installed.