MOTION SENSOR LIGHT: Motion sensor automatically detects when kids get out of bed. MANUAL BUTTON: Manual on-off button for light whenever you want. BATTERY OPERATED: Runs on 3 AA batteries, providing light in the event of a power outage. EIGHT INCHES TALL: Big enough to intimidate monsters, small enough to be sneaky about it. ALSO INCLUDED: Your new dragon also comes with a door hanger and a story book! Batteries not included.