Newmen F386 Wireless Mouse Cordless Optical DPI 800/1200/1600 with Nano Receiver 2.4GHz,Black 2.4 GHz wireless provides a powerful, reliable connection.Tiny USB Nano style receiver plugs into your PC and can stay there Ergonomic design, fits naturally in your hand.Smooth, precise and affordable wireless optical 4-button mouse with nano receiver for laptop, desktop and netbook PCs Hyper-fast scrolling lets you fly through long documents and Web pages DPI button to select your preferred cursor speed:800/1200/1600dpi Ergonomic design, fits naturally in your hand;Support operating system:Windows 7/8/10 and Mac OS;No function of programming