When it's time for baby doll to stop wearing diapers, it's time to learn how to use the toilet and this interactive one is ideal for the task. The lid opens and closes and the flush button activates two sounds -- that of baby doll going on the potty and of water flushing. Requires 3 AG13(LR44) batteries (included). it's part of the Mon grand poupon Corolle collection of dolls, fashions and accessories to help little ones take care of their baby doll the way their parents take care of them. Ages 3 years and up