Features:100% Brand new and high qualityAbsolutely comfortable design for your hand touch500-1000 (auto) CPI USB Wireless Optical Mouse2.4GHz Wireless Optical Technology ,Low-Battery Indicator, indicator lights reminds you to change the batteries. Power saving technologyHigh precision capacity scrolling can enhance your searching speedVery Easy to Install, only plug your USB receiver then you can use.Compatible with operating system: for Windows and for Mac, All Laptop or DesktopMini USB receiver is included, which can be stored neatly inside the mouse when not in useSpecifications:Condition: brand newInterface: USBWorks range: 10 metersColor: black/pink /yellow /green /blue Size: 11x6x2cmPackage included:  1 x Wireless Optical Mouse