Sky Viper Nano Drone (M200) Vehicle (Discontinued by manufacturer) At 2.75, the Nano is small enough to hold in the palm of your hand and is suitable for flying both indoors and outside. Easy One-Touch Stunts. Perform barrel rolls in mid-flight with a simple tap of the Stunt button. The 4-Blade Advantage: Experience the ultimate in flight agility, control, and stability. 4 blades offer the maximum in aerial control so you can focus on the fun of flying. Adjustable sensitivity offers precision and control for any experience level. High Performance 2.4 GHz Transmitter. Pilot the Sky Viper m200 Nano Drone with long range spread spectrum up to 200 feet away.