The Mickey Mouse Clubhouse Nightlight Book has an attached nightlight and on-off switch and six sound buttons that children use to enhance a story about Mickey Mouse and Minnie Mouse trying to solve a mystery. The book is designed for children ages 3 and older.When the switch is turned on, a light illuminates and a sound effect plays. Pressing the buttons activates one of these six sounds: A musical tune A door opening and closing A toy airplane A kite zooming through the sky Popcorn popping A telescope expandingThe book s thick board pages stand up to repeated use. The Mickey Mouse Clubhouse Nightlight Book conforms to the specifications for toy safety of ASTM F963-08. Three replaceable long-life AG-13 button cell batteries that power the nightlight and sound module are included. - from Amzon