PowerMate is the quintessential control knob for all USB computers. It spins like a knob. It clicks like a mouse. But it's so much more. You can use PowerMate to edit home movies, or scroll through long documents, or create your next audio masterpiece. How can PowerMate be this cool? Because it's an assignable controller that you can program to do anything you want, in any application. PowerMate functions beautifully as a convenient volume knob and mute button for your Mac or PC. But that's just the beginning of PowerMate's possibilities. Edit movies just like the pros, using PowerMate as a precision Jog/Shuttle wheel. PowerMate makes editing a breeze, anything from home movies to your next demo. It even comes preset to work with iMovie and GarageBand, right out of the box!