An incorporated auto stability system making it easy to fly. * A pre-installed 3 channel proportional wide beam infra red,Recharging takes place via the included transmitter. * The transmitter has an Alignment Trim, a Charging and Power Indicator, a Left/Right Lever and a Trimmer. * Lightweight Integral 3.7V 150mAh Lithium Polymer Battery * A charge of 20 minutes is equal to a 6-7 minute flight