1) Dimensions: 93*61.4*33mm (L*W*H) 2) Non-standard optical, 3 bottoms 3) Material: natural fresh bamboo 4) High Resolution: 1000 DPI5) Button life: over 5 million times6) Compatible with Window95/98/2000/ME/XP/NT/Vista/Win 7, ect.7) Certificate: FCC, CE, RoHs Bamboo Mouse, 3D Optical Mouse, wired