No strings attached. ALMOST Ready-to-fly, factory assembled and tuned, complete with 4-channel, FM helicopter transmitter with receiver and two servos, 720 mAh Lithium polymer battery and wall charger. No modifications necessary. Just charge and lift-off. Rock solid stability Cutting-edge technology makes control in the tightest spaces practical.Two sets of counter rotating blades (XRB) allow for close quarters flying in your living room. The blades generate the hovering stability that makes indoor flight possible and practical. Tether-free, Sky Robo does almost everything upright that a full-size RC chopper will do. Hover, Fly pirouettes, Fly forward and backwards, side-to-side,Practice orientations and more. Gyro control on board, complete ball-bearings. A full charge delivers about 12-15 minutes of flight. Uses high efficiency,180 size, coreless motors to power the main drives. We've ALL flown it (even the girls did piro's on their first flight!) and it is EXTREMELY stable and smooth. INDOOR OR DEAD CALM only!
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