Keep moving with a transceiver that stays in your mobile pc when you go and a mouse that works on more surfaces with microsoft bluetrack technology product description microsoft wireless mobile mouse 3500 mouse device type mouse colour lochness grey orientation right and left handed dimensions wxdxh57 cm x 95 cm connectivity technology wireless 24 ghz wireless receiver usb wireless receiver movement detection technologyoptical buttons qty 3 movement resolution 1000 dpi featur