This is the D51036 R-NET Joystick Module that fits Permobil chairs. 10 button keypad.

The R-net Remote Color Joystick is a proportional upgraded joystick that is separate from the controller box. The programmable electronics have separate drives and switch options available to safely meet different access, environmental, and terrain needs. The color LCD screen provides improved contrast for users with poor vision. The joystick also supports up to eight individually programmable profiles. Mono jack ports allow specialty switches and controls to be used to operate the on/off and modes/profiles function. When using multiple power options or alternative drive controls, an expandable controller is also required.