Logitech M705 Marathon Wireless Mouse &ndash; Long 3 Year Battery Life, Ergonomic Sculpted Right-hand Shape, Hyper-fast Scrolling and USB Unifying Receiver, for Computers and Laptops, Dark Gray LONG BATTERY LIFE - 3 year battery life and auto-sleep help you go longer between battery changes - the M705 uses less than half the power of comparable wireless mice HYPER-FAST SCROLLING- Scroll through long documents or web pages faster and easier. Or press the wheel and shift to click-to-click mode for precise navigation ERGONOMIC SHAPE - The sculpted, right-hand design guides your hand to a naturally poised position and places customizable control within your reach PROGRAMMABLE CONTROLS - Configure the buttons to do exactly what you want like switching applications, opening browser windows or jump to full screen while watching videos PLUG'N'PLAY CONNECTION - Nano-sized Logitech wireless unifying receiver stays in your computer plug it in, forget it, even add compatible wireless devices without multiple USB receivers Windows Vista, Windows 7, Windows 8, Windows 10 or later macOS X 10.4 or later USB port Internet connection (for software download)