Pressing the button turns the switch on. It has to be pressed a second time to turn it off again. Used for actuating functions which must be triggered quickly without letting go of the control stick. Removal of its locking spring converts the kick button to an intermediate switch which holds the ON-function only as long as the button is pressed down. * Retrofittable by GRAUPNER service-stations into transmitters mc-24, mc-20, mc-18, mc-17, mc-16, mc-16/20, FM 6014, FM 4014 and D 14 SSM.