Perfect for independent study or centers! The Hot Dots Talking Pen works with dozens of Hot Dots card sets and interactive books, providing instant visual and audio feedback. Simply press the pen to an answer dot on any Hot Dots or Hot Dots Jr. card or book for an immediate response. The pen responds with cool, kid-friendly phrases for correct answers and gentle redirection for incorrect responses. Features 17 speech and sound effects, plus flashing lights. Grades K and up. Requires 2 AAA batteries, not included.