Quadcopter applications indoor outdoor type of model rtf ready to fly propulsion electric series nine eagles galaxy visitor rc function flip gyro 3 axis gyroscope flight time 10 min weight 113 g length 190 mm width 190 mm height 72 mm diameter 230 mm rotor diameter 146 mm colours black white remote controls included manual operation transmission mode radio frequency range 2 4 ghz number of channels 4 type of battery li po battery vo