WorldConnect Swiss Mobile Concept Mouse SMM-004. Device interface: USB, Movement detection technology: Optical, Movement resolution: 800 DPI. Mouse weight: 80 g. Compatible operating systems: Windows 98SE, 2000, Me, XP, Mac, Minimum system requirements: Windows 98/2000/Me/XP /Mac, USB, Mouse dimensions (WxDxH): 970 x 520 x 350 mm