Over the Moon Alien UFO Plush Toy Moving Spinning Sounds Light. Runs on battery and has an on/off switch. Squeeze button on UFO ring and lights on ring and sound occurs. It is supposed to rotate and there is a plastic ring on the bottom were battery is and I have notice it gets stuck? So what has worked for me is to gently rotate UFO with my hand on the bottom to move ring and then works fine. It is currently working but shipping might stick it or from use. But make sure to have space on table because it moves around.