Play a jingle while you tinkle! If you find yourself on the throne, why not play some tones? The Potty Piano is a wrap-around musical mat that fits just about any standard toilet. Its great for the 'regular' musician in your family. Great for slaying boredom on the pot. Fully functioning keyboard with built-in speaker. (3) button cell batteries included. Easy to clean (just in case). On/off switch.