work effortlessly- with or without a mouse pad, the mouse moves easily for precise optical tracking, use the scroll wheel for fast, precise tracking to navigate through your work effortlessly. on center wood studs & concrete.easy plug & play- just plug the cord into your computer's usb port and you're ready to go., panasonic 17,18,19,20,21,22,23,24,25,26,27,28,29,30, 32 inch tvs installed on center wood studs & concrete.adjustable dpi- adjust your dpi setting (1,000 and 1,600 dpi), high-definition optical sensor delivers smooth, responsive cursor control, so you can work with precision and confidence on a wide variety of surfaces..butons- 3-buttons, scroll wheel (acts as third button)