Plush Elmo Knows Your Name Elmo knows your name, your family & friend?s names and your birth date This personalized plush features over 100 phrases, games, and stories Programming Elmo is as easy as 1,2,3! Requires 3 "AA" batteries. Operating System - Windows 2000, XP or higher Part of Multi-Brand Collection Age Range 18 Months to 10 Years