The graphite M585 Multi-Device Wireless Mouse from Logitech is designed with multitaskers in mind. With the Logitech Flow software, this mouse lets you switch between two computers and even supports copy-pasting from one to the other, even if you're using a PC and a Mac. Install the software on both systems, connect the mouse via the included nano receiver or Bluetooth, and click the dedicated Easy Switch button to switch between systems. For your convenience, it also features two thumb buttons, mapped to forward and backward for web browsing, which you can customize if needed. The M585 is powered by a single AA battery that can last for up to two years depending on use.