... Acceleration SensorDescription:- 100% brand new free flight controller, four axis Free Flight FF Auto Balance Controller,it can be used without debugging.- Support ... / flap 2 Lift and down 3,accelerograph 4,Heading Direction 5,Remote control calibration( Switch channel) 6,PTZ pitch angle 7 ... 4,No.2 motor input 5, No.3 motor input 6,No.4 motor input Dual axis PTZ:- It maintains verticality mode ...