The Contour Design Unimouse connects to a computer via a wired USB cable and has four adjustable features that enable you to use it like a typical mouse or in a vertical handshake position. The palm section of the Unimouse can tilt from 35 to 70 degrees to create a comfortable mousing experience. Your thumb is also supported after the adjustment process with a thumb rest, which can pivot 35 degrees in either direction as well as slide in or out and forward or backward. The Unimouse is equipped with an optical IR sensor that can be set between 800 and 2800 dpi, so you can customize the speed of a cursor. For issuing commands, six programmable buttons are on board along with a scroll wheel and a seventh button, which lets you quickly select the dpi.