Key features Advanced 2400 dpi gamer mouse with powerful optical engine for accurate surface tracking at high speed movement Comfortable & ergonomic shape with rubber coated edges for a firm grip during long lasting gaming sessions DPI switch with LED indicator for in-game adjustable sensitivity to 800, 1600 & 2400 dpi Software included for programming buttons Light weight USB (Universal Serial Bus) cable for less drag & optimal freedom of movement Advanced design with big smooth-gliding feet Package contents Optical mouse CD-ROM with software Users guide System requirements Windows 7, Vista or XP USB (Universal Serial Bus) port