KENSINGTON ProFit MidSize WirelMouse gre 80004518 K72423WW Product Description: Kensington Pro Fit Mid-Size - mouse - 2.4 GHz - graphite grey Device Type: Mouse Connectivity Technology: Wireless - 2.4 GHz Colour: Graphite grey Orientation: Right-handed Dimensions (WxDxH): 6.6 cm x 10.2 cm x 3.5 cm Weight: 110 g Wireless Receiver: USB wireless receiver Movement Detection Technology: Optical Buttons Qty: 5 Movement Resolution: 1600 dpi Performance: Realtime sensitivity switching 800/1200/1600 dpi Features: Scrolling wheel, battery indicator, on/off power switch, Nano wireless receiver, wireless receiver slot, navigation wheel, DPI switch Battery: AAA type OS Required: Apple OS X 10.8 Mountain Lion, Apple OS X 10.9 Mavericks, Microsoft Windows XP / Vista / 7 / 8 / 10, Apple MacOS X 10.11, Apple MacOS X 10.10 or later, Apple macOS Sierra 10.12, Google Chrome OS 44 or later, Apple macOS 10.13 or later Manufacturer Warranty: 2-year warranty