Highlights 3.5-channel full scale remote control. Intelligentized R/C system. 360‌‌º exact directional and smooth hang performance.     General Spec Model KJ-808    Type remote control Channel 3.5-channel Material metal and plastic Light support Gyro support    Function support forward, backward, ascending, descending, convolution and turn left or right function. Compatibility It’s suitable to fly indoor. Battery for Helicopter built-in 3.7V Li-poly rechargeable battery Battery for Radio Control 6 × 1.5V AA battery (not included) Others a set of accessories, built-in antenna