We bought this Casio mini-keyboard for our young son. The keys are indeed smaller, and the range is only about 2.5 octaves, but it is perfect for a toddler. And even though it is small, the sound is good and does not seem like a toy. The compact size means it does not take up much space. Note that the AC adapter is not included. But we found it actually more convenient to use batteries instead. With batteries, it is much easier for our son to carry the keyboard around the house and not be constrained by a power cord. In summary, we highly recommend this keyboard to any parents who want an inexpensive starter keyboard for their young child.