Darkfield Laser TrackingThe world is your mouse pad. Experience smooth, precise cursor control on surfaces where optical and standard laser mice reached their limits, z. B. glass tables (with at least 4 mm thick) and other glossy surfaces. | Four thumb buttonsQuickly switch between open windows and apps. Scroll through web pages. You can magnify images and maps and collapse. Thanks to the four customizable thumb buttons, you can do more in less time, and easier than ever. | Logitech Unifying receiverThe tiny wireless receiver can stay plugged into the USB port permanently, when you are traveling. And about the same recipient you can easily add up to six additional compatible wireless devices. |