【2022 USB CHARGEABLE VERSION】 No need to replace batteries over and over again, just simply plug in the cable for 1.5 hours, provides your kitty up to 4 hours of fun time 【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, the ball will start to do a 360 degrees self rotation and attract your pet's attention. The ball will continuously move around your house while producing a red light simultaneously 【AUTOMATIC DIRECTION CHANGE】 Due to the sphere shape and self balancing system, the ball will automatically change its direction when colliding with a wall, chair, door, etc. 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