Automatic ON/OFF&INTERACTIVE INFRARED: The product has an automatic sensor switch function. When the cat touches the toy, the toy will swing back and forth. The head of the toy will emit infrared light to attract the cat’s attention, and at the same time it will make a slight chick sound. When the toy stops swinging, the infrared cat light will stop synchronously.USB charging(Cable come with boxes), Needn’t worried about less battery when you are out. Interactive Toy:This toy allows cats to play by themselves. If you are busy and have no time playing with your cat, you can just turn on the toy, let it play with your cat instead of you. The upgraded model has removed the cat-calling sound: the old toy had a cat-calling sound mode, but many customers reported that this sound would scare the kitten, and now the upgraded product has removed this sound mode SELF-WEIGHT BALANCE MOVEMENT FUNCTION: This product adopts a self-weight balance system, which will move by itself when touching, and