Sing-A-Tune Little Mermaid Happy Birthday Balloon Sing-a-tune balloons are balloons that come to life with with audio recorded sound! Simply inflate the balloon and tap it to play! With a single tap they will play a song or sound matching the theme of the balloon. These are the world's first and only singing balloons. They are large 28", self-sealing balloons. Balloons are shipped packaged and not inflated. + 6 coordinating latex