Reliable Wireless Connection : Enjoy a wireless connection up to 10m away thanks to a plug-and-forget USB mini-receiver Optical Tracking : The advanced optical tracking features enable ultra precise moves on almost any surface. 12-Month Battery Life : Don’t worry about constant battery changes as this wired Logitech mouse has a 12-month battery life. Quality Assured : Logitech are experts you can trust, and for more than 30 years we have created high-quality corded, cordless and Bluetooth products that help you get the most out of your Windows computer, laptop, Mac or Macbook Reliable Wireless Connection : Enjoy a wireless connection up to 10m away thanks to a plug-and-forget USB mini-receiver Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse Optical Tracking : The advanced optical tracking features enable ultra precise moves on almost any surface.