Quad-bearing design.Improved quad-bearing design of the Radio sticks makes the control silky and smoothly * Adopted core technology of DEVO 12,versatile function ,high cost performance * 2 Model Type: Helicopter and Airplane. Improved programming with more mixes and better interface Program MIX ，MIX to Throttle * 7-point throttle curve makes the control exquisitely * Fifteen-model memory