Play your way to alphabet mastery with this new Hot Dots set of interactive puzzles for preschoolers. Press the enclosed Hot Dots Jr. Light-up Interactive Pencil to each page for an immediate light-up response. Learn My ABCs Hot Dots Jr. with Highlights On the Go Set features a spiral bound book with 24 double-sided tracking and puzzle cards. Great for alphabet learning on the go this Educational Toys Planet's early reading toy is lightweight. The electronic pencil requires 2 AAA batteries (not included).