Mix and match the characters to make different sounds and styles. Create music with Tweet Beats! Each bird has 4 unique sounds. Each Tweet Beat has their own beat, bass, melody and vocal in their music style. By combining the Tweet Beats you can create your own songs. Place a Tweet Beat in the tree on 1 of the 4 branches and right away you'll hear music. Switch the birds to make the most beautfiul Tweet Beat combinations and listen to the coolest music! Batteries required: 3 x AA (not included) For ages 3 years and over.