This interactive puppy magically grows up to be a full-sized dog in only four days! Just as easily, the dog can magically become a puppy again! As puppy grows, it learns to know your name, it’s name and when it is fed or groomed. Plus, the puppy can even sing songs using your name! Comes with a bone, brush, tape measure, growth chart, birth certificate and programming CD. Requires 4 AA batteries.