Bought this for my son to pass some time and have to say he's already had hours of fun with it good job I bought some rechargeable batteries the other day we have gone through two lots already ha ha. This works by turning it on and letting it gover in the air you place your hand underneathe and you can slowly control it by raising you're hand up slightly or down which is definitely unique. I'm going to purchase a couple more for my cousin's as they will make. Agreat Christmas present.