The Fisher-Price Linus 4-in-1 Learning Robot is baby's transformable play buddy, offering 4 different ways to play with lots of great music, lights and hands-on activities. With each robot, little ones can discover a different type of play fun: from spinning eyes to nudging play to exciting crawling behind. Baby can explore each robot individually or assemble them all into one big interactive play friend with fresh music, sounds and phrases. With Smart Stages technology, the learning content can be adapted to the age and developmental stage of the child.