The Disney Cars 2 Play-A-Sound Book has an attached eight-button audio module that enables children to add sound effects to a story adapted from the 2011 Disney-Pixar movie Cars 2 that follows superstar car Lightning McQueen and his best friend, Mater, through a world of intrigue, thrills and fast-paced fun. The book is recommended for children ages 18 months and older. Children match illustrated icons on the book s pages to corresponding buttons on the audio module to activate the following voices and sound effects from Cars 2: Lightning McQueen Finn McMissile Holley Shiftwell Evil Professor Z Mater The bad Lemons The World Grand Prix Loud crash The Disney Cars 2 Play-A-Sound Book conforms to the toy safety requirements of ASTM F963-08. Three replaceable long-life AG-13 button cell batteries that power the sound module are included.