(1): How to use: 1 Unscrew 2 Load 2 aaa batteries 3 Press the start button to start 100% satisfaction guarantee and responsible after-sale service. Contact us whenever you have a problem and get the solution within 24. (2): Advantages of dog and cat toys: 1 Playing with this toy, the owner and the dog and cat can play games together. 2 Playing with this toy, dogs, and cats are bound to run and jump during the game, and they need to perform some basic exercises. This is very good for pet dogs and cats. 3 Train dogs and cats to develop a cheerful and strong personality.