Computer Game Mouse,Gaosa Ergonomic 5500DPI USB Gaming Mouse 7 Button LED Optical Wired Pro Gaming Mice With well-spaced buttons,a comfortable design and top-of-the-line software, Hands-down,the best all-around gaming mouse A comfortable shape,textured grips and 7 big buttons in a convenient layout The Gaosa Optical Gaming Mouse has a max setting of 5500DPI.The adjustable DPI Switch on the top of the mouse is able to switch the DPI sensitivity When you click the switch it will flash in different colors indicating which setting you just changed it to .The Gaosa can Switch between 1000DPI(Red Light)/1600DPI(Green Light)/2400DPI(Blue Light)/5500DPI(White Light) Compatible with Windows XP,Vista,Windows 7,ME,2000 and Mac OS.No matter which platform you may be on ,this mouse will work for you With well-spaced buttons,a comfortable design and top-of-the-line software,the Gaosa mouse is ,Hands-down,the best all-around gaming mouse A comfortable shape,textured grips and 7 big buttons in a convenient layout The Gaosa Optical Gaming Mouse has a max setting of 5500DPI.The adjustable DPI Switch on the top of the mouse is able to switch the DPI sensitivity When you click the switch it will flash in different colors indicating which setting you just changed it to .The Gaosa can Switch between 1000DPI(Red Light)/1600DPI(Green Light)/2400DPI(Blue Light)/5500DPI(White Light) Compatible with Windows XP,Vista,Windows 7,ME,2000 and Mac OS.No matter which platform you may be on ,this mouse will work for you