Smart Cat Toy: - You don’t need replace the batteries for this smart cat toy, just charging with USB cable for 1.5 hours, which can provide 4 hours of entertainment and exercise for your kitten. 360 Degree Self Rotation: - The primary purpose of the self rotating ball is to have your pet chase the ball around and have fun. With just a single press of a button, this cat toy will continuously move around your house light up the red LED light to attract the cat’s attention and let the cat chase the ball around indoor to have fun and exercise. Automatic Direction Change: - Owe to the sphere shape and self balancing system, the ball will automatically change its direction when colliding with a wall, chair, door. No extra help required, all you need to do is turn the ball on to play and turn off when your pet is out of energy and done playing. Automatic Shut Off: - The ball will automatically turns off after 40 minutes of rolling,perfect for those who donu2019t have time to watch your