Camera drone quadcopter applications outdoor indoor first person view type of model rtf ready to fly protection return home gyro 6 axis gyroscope v20 features protected rotors flight time 10 min length 335 mm width 335 mm height 50 mm rotor diameter 140 mm camera with camera transmission mode radio frequency range 2 4 ghz number of channels 4 type of battery lipo 1s battery voltage 37 v battery capacity 650 mah recommended minimum age