From IQ-Station Wiki
There are two specific input devices that are recommended. Choosing a particular model depends on the factors described below, as well as availability.
- Logitech Cordles RumblePad2 is a standard dual-joystick (and dual-handed) game controller that uses RF communications, and has a nice location to mount a position tracker.
- Nintendo Wiimote works well as a single-handed controller, though the joystick must be added through a second input ("Nun-chuck").