Reliable wireless feature: No delays or disconnections. the tiny wireless receiver gives you connectivity you can count on. Battery full year: With 12-month battery life, you don't have to deal with the hassle of frequent battery changes. Made to achieve durability: You will enjoy Logitech's renowned high quality and reliability - along with a 3-year hardware warranty. Nano receiver just plugged in to use: This kit works with computers running window and mac. Very small and space-saving, you only need to plug into the USB port and no need to care anymore. Plus, you will no longer have to worry about losing receivers. 1 year battery life: You can use it for a year without getting in trouble with the battery. On / off switch and intelligent sleep mode help save power. Reliability comes from Logitech: You own the quality and reliability that makes Logitech a global leader in mice - with a three-year hardware warranty. Advanced 2.4 ghz wireless connectivity: You get the reliable connection of a wired product, but it's convenient with wireless and completely free - data transfers are fast and there is almost no delay or disconnection. Simply plug and play: No software, no hassles - just plug in a tiny nano receiver and start using the mouse right away. Convenient shape with borders: Contoured design feels comfortable for both hands and more comfortable for the touchpad (touchpad). Perfect for laptops and netbooks: Your mouse works with windows, mac and Linux. no matter what type of computer you currently own - or will buy later - you can rely on a computer mouse to work as you expect it to.