The best thing is that since there is so much to learn about the product and how to really use it, they will be busy for a few years. When you push the animals it makes a animals noise and press piano keys making the piano sound,the indicator light will flash with the sound of the piano. I like especially the volume control so that we can keep it from being too loud. The different instrument choices are fun. It’s so easy to use and very durable. I am very satisfied and pleased with my purchase.