Wireless! The mouse interface works in two ways: as a conventional mouse for cursor movement or for computer switch access. It connects wirelessly to your computer so you can use either the 5" diameter built-in switchplate or insert two of your capability switches into the device to mimic mouse clicks or keystrokes. For easier conventional mouse use, theya have added both a removable T-handle and a joystick ball for additional ways to move the interface. Comes with software for configuring each button to be any keystroke or mouse-click. PC, MAC and Linux compatible. Requires USB port.