2 Great for a little while!!!EdwardWilcox | 22/04/2008 | See all EdwardWilcox's reviews (1)When i first bought one of these it was great, but after a while you get problems, like it just keeps spinning and doesn't fly more than a few inches off the floor, also the last one i had i accidentally left on for a few hours and then it wouldn't charge or do anything after that. Great fun when they do work though.... Definitely worth the 10 bucks! Hope this helps!!