Cat sound ball, with a diameter of 50mm (1.97 inch) Each toy is built-in LR44 battery cell and sound device, which can produce different simulated sounds Note:To prevent cats from eating by mistake, the battery does not cannot be replaced Simulate real sounds Simulate the real sounds of three different animals to attract cats' attention and stimulate the cat's hunting nature. The sounds of different color balls are different, Blue frog sound Yellow cricket sound Pink bird sound Smart tap trigger Cat toy ball has built-in high-sensitivity sound. As long as the cat's paw lightly touches the ball, it will make a sound. Cat ball toys with funny animal sounds can reduce boredom and increase your cat's activity, bringing more fun to your cat. Catnip can be added After opening the lid, you can add catnip to the ball. It can make your cat excited and happy, and become the cat's favorite toy. It can encourage the cat to exercise, stimulate its thinking, or accompany the cat, allowing your cat to exercise and keep healthy.