New Charging Version】 No battery need to be purchased for this cat toy ball. Built-in 250mAh Li-ion battery. Just plug in the cable for 1.5 hours, which allows to your cat for up to 4 hours of fun. 【360 Degree Automatic Rotation】 The main purpose of cat toy balls is to make your pet chase the ball and have fun. With just the push of a button, the ball will start to auto-rotate 360 ​​degrees and grab your pet's attention. The ball will continuously move around your house while simultaneously producing a red light 【Automatic Direction Change】 Due to the shape of the sphere and the self-balancing system, the ball will automatically change direction when it collides with a wall, chair, door, etc. no additional help is needed, you just need to spin the play ball and turn off when your pet runs out of energy and is done playing 【Auto Shut Off】 The ball automatically turns off after 45 minutes of rolling, perfect for those who don't have time to watch your cat while they play 【Quality Service】: is a brand committed to providing quality products with lifelong customer service. If you have any questions about your portable personal ventilator, please email us.