Flight reviewing the Holybro Shuriken 250, out of the box, no settings changed.
BUY NOW: http://www.gearbest.com/rc-quadcopter-parts/pp_449935.html?wid=21&lkid=10136936
Read the written review: http://smadja.co/gearbest-holybro-shuriken-250-rc-racing-drone/