KENSINGTON Mouse in a box USB optical 80004518 K72356EU Product Description: Kensington Mouse-in-a-Box USB - mouse - USB - black Device Type: Mouse Connectivity Technology: Wired - USB Colour: Black Orientation: Right and left-handed Dimensions (WxDxH): 5.5 cm x 11.5 cm x 3.8 cm Weight: 60 g Localisation: Europe Movement Detection Technology: Optical Buttons Qty: 3 Movement Resolution: 800 dpi Features: Scrolling wheel Cables Included: 1 x USB cable - integrated OS Required: Apple MacOS X, Microsoft Windows Vista / XP / 7 Package Type: Retail Manufacturer Warranty: 5-year warranty