My Hubsan Zino H117S drone fell from the sky on the third flight. I saw the lights go out in mid-flight and the Zino falling. I did a search for 3 days and I did not succeed in finding it. Hubsan does not care about that. They replied to my email saying "Sorry, not mean to suspect what you mentioned in your email, just a little weird sounds." I spent my money, flew 3 times and lost my money. If you buy something from Hubsan keep in mind that there is no guarantee.
