12 months & up. Press a key on the piano, hear the sound, and watch the balls pop up! The clear arched dome guides the balls into different pipes each time so when another note is played the ball pops up again. When the keys are pressed, hear piano tones or flip the switch to hear fun sound effects. Press the squishy Mirari® button to hear a fun giggle. Toddlers will enjoy watching the motion and movements. Features a natural wood base and a non-removable dome. Includes 3 AA batteries. Piano measures 9"L x 11.5"H x 5.5"W.