2 years of battery life practically eliminates the need to replace batteries. The On/Off switch helps conserve power and the smart sleep mode helps extend battery life. A wireless mouse for laptop and PC; compatible with Windows, Chrome and Linux The tiny Logitech USB Unifying receiver stays in your laptop. There’s no need to unplug it when you move around, so there’s less worry of it being lost. Easily add a compatible computer wireless mouse or keyboard to the same wireless receiver The Logitech M510 graphite wireless laptop mouse comes with a battery indicator light on the top to eliminate surprises Your hand can relax in comfort hour after hour with this ergonomically designed wireless mouse for PC. Its contoured shape with soft rubber grips, gently curved sides and broad palm area give you the support you need for effortless control all day long Get the control to do more, faster This Logitech wireless mouse features three standard buttons plus programmable Back/Forward buttons to switch applications, go full screen and more. Side-to-side scrolling and zoom lets you scroll horizontally/vertically