Quadcopter applications indoor outdoor type of model rtf ready to fly propulsion electric gyro 6 axis gyroscope flight time 12 min included in delivery remote control flight battery charger model length 335 mm width 335 mm height 50 mm rotor diameter 140 mm colour orange remote controls included manual operation transmission mode radio frequency range 2 4 ghz number of channels 4 type of battery li po battery voltage 37 v battery capac