HP Ultrathin Bluetooth Mouse (1020 color match Mouse) L9V78AA#ABA Accessory Type: Bluetooth Mouse Color: Black Specifications: Connectivity Technology Wireless: Bluetooth 3.0 Max Operating Distance: Up to 33 ft Orientation Right and left-handed Movement Resolution: 1200 dpi 4 way optical touch scroll Battery AA type OS Required: Microsoft Windows 7, Windows 8 Localization: English / United States