This hippo arch is your take along entertainment for baby! Adjustable baby-activated developmental arch connects easily with clips to strollers, baby carriers, small bassinets and small playpens. A soft musical hippo, a friendly frog with mirror and a colorful crocodile rattle keep baby occupied. An empty loop lets you personalize the arch with baby's favorite toys. There is even an on/off switch for three playful tunes that play when your baby swats at the hippo! Includes 3 button-cell batteries. Ages newborn and up.