The PowerMate Assignable USB Multimedia Controller from Griffin Technology is an exceptional alternative to using a mouse with your computer. This device features a spinnable, scrollable wheel as well as a clickable one-touch button. Both the scroll wheel and the one-touch button can be programmed to handle a wide variety of different functions for different applications. This control knob connects to your computer via USB and is compatible with Windows and Mac computers. It works well in audio, film editing, and other multimedia applications.