Logitech Wireless Mouse M215 w/Nano Receiver (RED) A compact, reliable mouse that offers simple setup, 2.4 GHz wireless, and more comfort and control than a touchpad. Wireless Mouse M215 - Simple setup Simple setup: No software. No complications. Just insert an AA battery, plug the wireless nano-receiver into a USB port, and the mouse is ready to use. Wireless Mouse M215 - Plug-and-forget nano-receiver Plug-and-forget nano-receiver. So small and unobtrusive, you can plug it into a USB port and forget about it. Plus, you can say goodbye to worries about lost receivers. Wireless Mouse M215 - Logitech Advanced 2.4 GHz wireless Logitech Advanced 2.4 GHz wireless You get the reliability of a cord with cordless convenience and freedom—fast data transmission and virtually no delays or dropouts. Wireless Mouse M215 - Duracell AA battery Extended Battery Life You'll have enough power to go for months before your first battery change. Uses a single AA battery (not included). Note picture at left shows black mouse, but the model we are selling is red. Wireless Mouse M215 - Intelligent battery management Intelligent battery management The low-battery indicator light eliminates surprises. An On/Off switch helps conserve power, and a smart sleep mode extends battery life. Wireless Mouse M215 - Built by Logitech Built by Logitech: This mouse comes with the quality and design we've built into more than a billion mice, more than any other manufacturer. Wireless Mouse M215 - Better control Better control At home or on the go, you can say good-bye to your laptop's touchpad. Wireless Mouse M215 - Compact design Compact design It's easy to slip the mouse into a bag and take it with you when you're on the go. System Requirements Windows 7, XP, VISTA Also works with MacOS X and most Linux OS Available USB Port for included nano receiver One AA battery (not included)