... 4-axis F450 Multi Flame Wheel 2.Flame Strong Smooth KK MK MWC Quadcopter 3.Free Flight FF Auto Balance Controller ... 100% brand new free flight controller, four axis Free Flight FF Auto Balance Controller,it can be used without ... 1, PTZ Pitch angle servo 2, PTZ roll servo, 3, No.1 motor input 4,No.2 motor input ... 5, No.3 motor input 6,No.4 motor input Dual axis ...