Key Features AS3X™ Digital Flybarless System Integrated flybarless unit increases stability, control and power, providing the user the ultimate ultra-micro heli experience for indoor and outdoor use Capable of maneuvers such as inverted hover, loops, flips, rolls, funnels, and hurricanes Very low disc loading results in high maneuverability and good collective response Lightest heli in its class Robust, long-lasting dual-ball bearing supported linear cyclic servos Two sets of blades included, fast-flight and high-performance Two high-performance flight batteries included Needed To Complete You will need a Spektrum DX4e, DX5e, or any programmable DSM2 or DSMX transmitter.