Hes the same soft, cuddly friend that responds to babys touch with silly sayings and sing-along songs - but now hes got Smart Stages technology that changes the learning content as baby grows. Because every baby develops at their own pace, Smart Stages technology gives you the ability to select the stage thats best for your child. There are a variety of developmentally appropriate songs, phrases and sounds within three levels of play. Level 1, 6 months and up: Explore, First words and sounds spark babys curiosity. Level 2, 12 months and up: Encourage, Prompt baby through questions and simple directions. Level 3, 18 months and up: Pretend, Imaginative fun and early role play. Fisher Price Laugh & Learn Smart Stages Puppys light-up heart even twinkles along to the music. Requires 3 x AA batteries (included).