Baby Genius Let's Learn Shapes Interactive Electronic Sounds Wooden Puzzle with Peg Pieces by Manhattan Toy Sturdy wooden construction and easy to grasp pegs make shape sorting easy, great for learning shapes and problem solving 8 different electronic sounds are featured when pieces are lifted and then put back in the correct place For ages 18-24 months. Encourages problem solving, cause and effect and learning first words Requires 2 AAA batteries, not included Inspired by the award winning Baby Genius DVD series