MagicShield Form-Fitting Ergonomic Curved 2.4GHz USB Wireless Optical Mouse Mice Slim Mouse with DPI Switch for Apple Mac Macbook Pro Air PC - Green 100% Brand New 500-1000 (auto) CPI USB Wireless Optical Mouse 2.4GHz Wireless Optical Technology , Interface: USB Very Easy to Install, only plug your USB receiver then you can use Low-Battery Indicator, indicator lights reminds you to change the batteries. Works maximum within 10 METER distance Compatible with operating system: Windows and Mac, All Laptop or Desktop