The Sing n' Waddle Duck is baby's first friend that helps encourage your baby's development through 3 modes of play: 1. Crawling mode - the duck moves and plays music, encouraging crawling with it's lights and fun flapping feet 2. Duck mode - duck sounds, actions and egg laying teach baby early animal recognition. Brightly colored eggs delight the senses and help baby develop grasping motor skills. 3. Voice Control mode - the duck moves in response to baby's clapping or voice The Sing n' Waddle Duck is designed for children 9 months and older. Requires 3x AAA batteries, not included.