3 Channel RC Military Gyro Mini Indoor Helicopter Viefly V268
Several crashes from my twelve foot ceiling to the tile floors have not caused discernible damage. I did manage to nick the counter rotating main rotors several times as I found furniture edges and ceiling beams; sanding the nicks was necessary to get things back into perfect balance. But that was really easy to do with an emery board, a dremel may have even been too much.
The rear rotor is horizontally oriented and it only comes on when forward or reverse stick is applied. The main rotors control up-down, right-left flight operations. Superb piece of workmanship and fine design. Comes with a separate charging cord so you can charge from your laptop USB port, thus saving the battery life in the controller.