Hot Dots Talking Pen - Theme/Subject: Learning - Skill Learning: Game - 1 Each Turn study time into an interactive learning game with this talking pen. Universal design is compatible with dozens of Hot Dots and Hot Dots Jr. card sets and interactive books (each sold separately). Responsive design provides instantaneous visual and audio feedback to support independent, self-paced learning. Child-friendly phrases are provided for correct answers and a gentle redirection is provided for incorrect responses. Battery-operated construction requires two AAA batteries (sold separately).