Animal SoundHunting games with fluffy plush ball interactive cat toy. The pink toy ball makes vivid chirping bird sounds once play begins. When put aside, it will be automatically silent to save energy. Catnip IncludedRemove the lid and place the cat mint, Your cats will go crazy for it! It would be a great way to introduce your cats to the ball. Fluffy Plush BallCat ball interactive toy are made of durable and highly elastic EVA materials that take every aggressive attack; plush are soft and non-toxic for cats. Comfortable CompanionGet rid of boredom. Your cats can play with the balls when you are busy or not at home. And you can interact with your cats through the balls too. It keeps your cat active and busy. Replaceable BatteryThe battery can be replaced with an LR41 battery. The batteries make each cat toy ball 10,000 times of chiruption, just open the whole cover, then put in the new battery.