1). The flybarless design characterizes low power loss and great improvements in efficiency.
2). Sophisticated 3-Axis gyro flybarless stabilization system automatically adjusts the controls for stable flight .
3). Highly developed low voltage drive system provides a green, environmentally friendly and safe power solution.
4). Mini size helicopter for indoors, providing 5-6 minutes of flight time after a full charge. http://www.rctophobby.com/rc-helicopter ... opter.html