Adjustable DPI Switch: 1200-1600-2400-3200 DPI. X8 6 button design, with four stalls DPI regulation Support system: Windows XP / Vista / 7 / 8 / Mac OS Comfortable ergonomic had type arc shape desgn All blend into one harmonious where beautiful bright light Working distance: 1.8m (Max) Anti-skid scroll wheel, excellent hand feel.
