When children press a key on the piano, they not only hear a sound, they see a star pop up! The clear dome guides the shooting stars onto a different pipe so when another note is played, theyí¢‰̢ۡ?̣å¢ll pop some more! Flip the switch to go from piano tones to hearing fun sound effects when the keys are pressed. Pop! Pop! Piano measures 9" x 11" x 5-3/4". For ages 12 months and up. Includes 3 AA batteries