This plush toy features SynchroMotion a cutting edge animation technology that synchronises the motion of the mouth to words or songs allowing an inanimate figure to come to life before your very eyes Features Animated Elmo that sings Arms and mouth move Press button to activate Songs IncludeHappy Birthday To You and Happy Happy Birthday Phrases Include its fun to share birthdays with friends lets celebrate surprise and Elmo wants to wish you a happy birthday 30cm Tall Requires 3 x AA batteries included Suitable for ages 3 Elmo by Sesame Street