Experience the superior precision of high-performance laser! Delivering extraordinary control on virtually any surface, iOne laser technology makes optical obsolete. The Lynx R22 is ready to use in seconds, move flawlessly on surfaces where optical mice can't go. Performance Laser Tracking provides state-of-the-art laser technology for unmatched precision and control. Speed-browse on the web and navigate more easily with the Lynx R22 adjustable speed from 400 dpi to 1600 dpi!!! Just plug and play! This mouse is extremely simple to install; simply connect the mouse to the USB port and it's ready to use! System requirements: IBM or compatible PC Windows 98/2000/ME/XP/Vista available USB port