China has developed X-M20 "Crane", a small-size multi-rotor unmanned aerial vehicle (UAV), which can climb up to 5,000 meters.

The electricity-powered small UAV features distinctive pitch control technique, which makes it unique in the UAV market.

X-M20, with the weight only 20 kilograms, is designed to have a service ceiling up to 5,000 meters and wind resistance capacity up to seven level.