1. [Smart Ball Toys for Cats] Built-in sensitivity trigger will play simulated animal sound when cat's paw lightly touches the toy. It is easy to attract your cat's attention. Light weight, easy to carry for indoor and outdoor activities to have a lot of fun playing with your cats. 2. [Animal Sounds Simulations] The interactive cat toys have been built-in battery, it can play 3 realistic animal sounds such as frog, cricket and bird sounds; the animal sounds happen when your cats touch each other by scratching and batting the balls, the natural animal sounds will make your cats very happy and excited when playing with them. Each ball inside the battery can be used 10000 times the sounds life. 3. [Refillable Catnip Toys] The cover of the chirping ball can be easily removed and then you can add catnip into it, which will make your cats pay more attention to the balls; And the ball with catnip will give a very fun playing experience to your cats. A set of fun toys to keep company with your cats.4. [Safety Cat Training Toys] These cat chase toys are made of high-quality and durable EVA, soft and safe for cats. Brightly colored to attract your cat's attention more easily, the EVA ball is durable and not easy to bite or break by your cat.5. [Reduce Cat Loneliness] When you need to work or go out for activities, the cat will feel lonely due to the temporary lack of company. This cat toy will become your cat's best playmate, helping your cat reduce loneliness and separation anxiety. While maintaining its sanity, your cat will fall in love with these little toys."