Colourpink The cat toys ball can be switched from red light and colorful lights, which can quickly attract kittensattention and enjoy the fun. Rechargeable: No need to replace batteries over and over again, just simply plug in the cable for 1.5 hours The primary purpose of the self rotating interactive cat toys ball is to have your pet chase the ball around and have fun. With just a single press of a button, the ball will start to do a 360 degrees self rotation and attract your pet& 39;s attention. Due to the sphere shape and self balancing system, the ball will automatically change its direction when colliding with a wall, chair, door, etc. The ball will automatically turns off after 40 minutes of rolling, perfect for those who dont have time to watch your kitty while they are playing. The interactive cat toys ball rolls best on hard floor, but might not roll well on thick carpet, please purchase with attention.