Quadcopter mini drone application indoor type of model rtf ready to fly propulsion electric rc function flip gyro gyroscope 6 axis gyroscope features protected rotors flight time 5 min included in delivery remote control charger battery pack replacement rotor model length 55 mm width 55 mm height 19 mm colour green remote control included transmission mode radio frequency range 2 4 ghz number of channels 4 skill level easy recommended