... Product Description G104 Gyro /head lock gyro for rc helicopter Specifications:- Input power : 4.5-6v- Input signal ... rudder control drift one way. put your helicopter down on the ground and adjust the ... Recommendation:- Fit :Walkera #36, #60, #68B- Fit:Esky king2, king3, belt- cp, belt cp v2- Fit:ALIGN ... 250, 450, 500, 600 battery powered rc helicopter for 3D flying actionwhat you waiting for?Nothing ...