KENSINGTON ValuMouse Threebutton Wireles 80004518 K72392EU Product Description: Kensington Wireless ValuMouse - mouse - 2.4 GHz - black Device Type: Mouse Connectivity Technology: Wireless - 2.4 GHz Colour: Black Orientation: Right and left-handed Dimensions (WxDxH): 6 cm x 10.8 cm x 3.8 cm Weight: 100 g Localisation: Europe Wireless Receiver: USB wireless receiver Movement Detection Technology: Optical Buttons Qty: 3 Movement Resolution: 1000 dpi Features: Scrolling wheel, battery indicator, on/off power switch, Nano wireless receiver, ambidextrous design, wireless receiver slot OS Required: Apple MacOS X, Microsoft Windows 7 / 8 / 8.1 / 10, Google Chrome OS 44 or later Manufacturer Warranty: 5-year warranty