Basic Parameters: Applicable Person: Game Fancier/Office Size: Middle Size Ergonomics: Symmetric Design Connection:Braided Wire Interface: USB Number of the Key: 9 DPI: 1000-1500-2000-2500 Color: Black/White Compatible System: Windows XP/Windows Vista/Windows 7/Windows 8/Mac OS and other OS with CD-ROM. The programable function of this mouse is just suittable for Windows operating system. Mac OS and other operating system can not program the mouse button. Packing List: Mouse x 1 CD x 1