Quadcopter nano drone applications indoor outdoor type of model bnf bind and fly propulsion electric brushed rc function flip lighting led weight 27 g length 130 mm height 42 mm rotor diameter 50 mm remote control not included transmission mode radio frequency range 2 4 ghz number of channels 4 type of battery lipo 1s battery voltage 37 v battery capacity 200 mah skill level medium recommended minimum age 14 years