Snuggly plush toy that teaches over 100 first words with Smart Stages technology to grow along with your child Sis’s hands, foot, ear, and light-up heart respond to baby’s touch (5 activations in all!) 75+ songs, sounds, tunes and phrases introduce parts of the body, shapes, counting, the alphabet and more! Press and hold Sis's light-up heart to hear all her songs For infants and toddlers ages 6-36 months