Celebrate your love of The Big Bang Theory with the official talking button featuring one of its most iconic phrases: Bazinga! Specifications:  A 3-inch collectible talking button that plays Sheldon's signature phrase when pressed Mini Book Included:  Learn about the history behind this popular phrase with this 32-page, 2-1/2 x 3-inch miniature book complete with full color art A Great Gift for  Big Bang Theory  Fans : Keep within arm's reach on shelf, desk, or bookcase to deliver the perfect "Bazinga!" for you and your friends Officially Licensed : Authentic The  Big Bang Theory  collectible Includes button or coin cell batteries.