Turn bath time into a concert with the Hape Musical Whale Fountain! There are two ways to play with this interactive toy. Press down on the whales to play them like piano keys - Do, Re, Mi, Sol, La. You can also watch the fountains dance to the music. When you play one whale, its fountain will stop, and the other keys' fountains will spray with more force. Your child will learn about cause and effect when creating their own tunes using the different keys. This engaging tub toy is perfect for establishing an initial sense of music and rhythm in toddlers 18 months and up. This developmental toy sticks to the bottom of the bath with attached suction cups. The smooth, bright, and colorful toy makes bath time fun and safe. It requires 4 x AA batteries (not included).