I have been flying radio controlled helicopters (RC helicopters) for over 20 years now, and have seen so many advances in this fun hobby over those years.

Unlike most RC airplanes, radio controlled helicopters don't require a large mowed or paved runway; they take-off vertically so any open area will do.
At the other end of the spectrum are small micro electric indoor RC helicopters that you can fly in your own home or at the office. Add in the amazing fun factor and it is easy to see why RC helicopters are such a popular choice for so many people.

I wanted to make those distinctions very clear so you understand there is a big difference between these various types of radio controlled helicopters - they are all completely different machines and fly very differently from one another. A little homework on your part is therefore needed to determine which is the best match for you or someone else if you are thinking of giving one as a gift.