The Clementoni Electronic Keys Rattle is an interactive toy that is perfect for a stroller or crib. The bright rattle has three coloured plastic keys that will captivate your child, so it is the perfect tool to hang within reach of your little one's hands. As your child gets older, he or she will discover the light and sound effects. Each key has a different function. Is your child teething and feeling uncomfortable? Then they will find relief by biting the soft plastic handle, making this toy a great aid during the teething process.