From TheFrighteners.com People with think you've really gone up-town when they see this distinguished gentleman at your command. He even shivers like he's gone a little dotty in his old age. NOW with Motion Activated Motion Maker Unit! When someone comes close, Dobson begins to shiver and shake then turns off when no one is around. Saves energy and extends life of motion-maker unit. Includes Runs on 2 AA Batteries or AC Adapter.