JR Ninja 400MR 3D Quadcopter

While most quads are designed to either learn to fly with or to take videos, the Ninja 400MR from JR is made for “Holy Cow!” performance. The Ninja is an aerobatic 3D quadcopter that is capable of high speeds and crazy air maneuvers. Its fixed pitch propellers were designed to reverse direction quickly, giving it agility that most other quads [...]

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