Highlights Can fly about 8 minutes if fully charged. 3-channel full scale remote control. Omni-directional flight. Suitable for fly both indoor and outdoor. General Spec Model 819 Type remote control Channel 3-channel Material metal and plastic Function support forward, backward, ascending, descending, convolution and turn left or right function. Compatibility It’s suitable to fly both indoor and outdoor. Battery for Helicopter built-in 7.4V Li-poly rechargeable battery Battery for Radio Control 8 × 1.5V AA battery (not included) Others a set of accessories, double main rotor