This is a Heli-Max MD-530 SLT RTF Flybarless Helicopter. A fixed pitch, flybarless rotor head makes it more agile than co-axial helis, but easier to control than collective pitch models - and more durable, besides. The onboard TAGS (Triple Axis Gyro Stabilization) keeps the MD-530 flying smooth and steady, whether it's outdoors in a light wind or indoors in a living room or garage.