Ideal for ages 1 to 3 Electronic treehouse that plays music and makes animal sounds Over 100 musical combinations! 4 animal building blocks that, when matched in the treehouse, activate animal sounds 2 music modes: Build your music and animal sounds Learn matching in Mode 1: Match an animal to its color to hear its sound Includes 6 building blocks to build their own musical melodies First Builders blocks are perfect for little hands Hands-on play for early childhood development Combine with other mega bloks® preschool toys and Build Them Up!?