Engages kids through books, video and audio for an experience that reinforces learning and helps kids better understand concepts. Trigger videos on the 1.44" LCD screen by using the stylus to tap on the pictures and words to explore reading, math, problem solving and more Video effects let kids zoom in, explore and interact with learning concepts and most activities have two levels so kids can advance when they're ready Grow-with-me library includes 400+ activities across three levels covering preschool through first grade curriculum with 50+ skills at each level Computer with internet required. LeapReader books not compatible. Intended for ages 4-8 years. Rechargeable lithium battery included Learn in an exciting new way with the innovative LeapStart Go interactive learning system. This sleek, easy-to-hold stylus triggers videos and audio responses using the adjustable 1.44" LCD screen and built-in speaker. LeapStart Go makes it easier for preschool through first grade kids to understand more advanced information with activity sets like The Human Body and School Success (sold separately). Cool interactive video effects let kids zoom in, explore and interact with a variety of learning concepts by touching the stylus on interactive charts, book pages and more. Holds up to 13 LeapStart animated books. A computer with an Internet connection is required to download books and activity sets onto the LeapStart system. Not compatible with LeapReader books. Intended for ages 4-8 years. Rechargeable lithium battery included.