Publication details: MirariDescription: Tap on the piano keys to watch a colorful ball fly into the air inside the transparent dome and hear sounds such as bells, whistles, laughter, and more. After every note, the balls fall back into the pipes, ready to be launched again. Press the music note button to change the sounds from silly to classic piano. Since this toy has large keys as well as visual and auditory feedback when a key has been pressed, it's a great way for children with vision, hearing, and fine motor difficulties to play alongside their peers. Requires 3 AA Batteries (not included)