Get your kid ready for preschool! Hot Dots is an activity book, paired with an answer-checking interactive pen, that covers all the essentials skills for preschool. Read the question, press the tip of the pen to a black answer dot, and get instant feedback from the pen. The pen turns green for correct answers and red for incorrect answers. The pen does not talk or read answers; it can also be muted for quiet learning. Learn essential preschool skills like letter and number recognition, counting, letter sounds, and more! Includes 36 double-sided activity cards with ABCs and 123s and interactive Hot Dots pen. For ages 4+. Pen requires 2 AAA batteries (not included).