Cross-computer control - game-changing capacity to navigate seamlessly on two computers, and copy-paste text, images, and files from one to the other using Logitech flow, Dual connectivity - use with up to three windows or Mac computers and laptops via included Unifying receiver or Bluetooth smart wireless technology, Long battery life- The Logitech M585 just keeps going, Ultra-precise scrolling- micro-precision wheel packs more grooves per millimeter to make scrolling through long webpages faster and easier.