Fantastic little guy. Bought one, sent to my son that works perfectly. Great for learning how to control these things, there is enough flexibility to allow you to change the mode to control you in advance. Studying inside hard, unless you have high ceilings, but I have to play, hit my ceiling, after between wooden floors, stoves, doors, windows, and nearly all other surfaces in my house to full speed play. Get better though. Gets 5 to 6 minutes flying time, then load about twice as much. The auto-flip is a nice feature that Wows increases observed from people.