The Logitech Wireless Mouse M305 offers exceptional comfort and cordless convenience with its ergonomically designed soft rubber grip and the nano-receiver. Plus, the plug-and-forget nano-receiver is so small it stays in your laptop, so that your mouse is always ready to use. Logitech's advanced 2.4 GHz wireless technology provides a powerful, reliable connection – with virtually no delays or dropouts. Intelligent battery management delivers months of use and added convenience. An indicator light eliminates surprises and the automatic sleep mode turns off the mouse when you’re not using it. High-definition optical tracking (1000 dpi) enables responsive and smooth cursor control.