If you want to operate the Micro Joystick with your hand or fingers, you will have to ensure that your arm, wrist and hand are supported and that the joystick is mounted in an optimal position. The joystick placement must be very specific because the user will generally have minimal movement. The joystick can be integrated into a tray or mounted anywhere else for easy access (e.g. below the armrest).
The Micro Joystick can also be mounted on a swing-away arm or harness if used as chin, lip or tongue control. However, controlling such a sensitive joystick with your chin can be challenging, especially in rough terrain. The Multi Joystick may be better suited for you in some cases.