With the Evoluent D Vertical Mouse you will experience ergonomics and comfort on a higher level, and operating this vertical mouse is incredibly simple and intuitive The latest Evoluent wireless mouse with so many great features! A patented ergonomic shape, programmable buttons, an extra wide lip along the bottom edge, easily accessible thumb buttons, the USB receiver can be stored behind a magnetic battery cover, a directly accessible pointer speed button, available in three different mouse sizes, features such as 'Smart Scrolling' and 'Eye Comfort Control', all these great features are combined in the Evoluent D - we give you even more reasons to get to know and love the Evoluent D. Perfect shape, even in the buttons. The Evoluent D has special notches in the buttons so that your fingertips can rest flat in these notches on the buttons. Thanks to this innovation, the mouse sits securely in the hand and can be moved much more precisely. The easily accessible thumb buttons are intelligently placed and are within easy reach above and below the thumb rest. All these details ensure efficient working. Your mouse. Your mouse button assignment. With the free download version of the Evoluent Mouse Manager software, you can easily configure the five buttons on your Evoluent D. By individually setting your mouse buttons, you can work as comfortably as possible. Three sizes, both wireless and wired. The Evoluent D is available in three different sizes: small, medium and large. You can choose whether you want a wired or wireless version. The combination of the right mouse size for your hand and the ergonomic shape ensures a relaxed grip and a short adjustment period. Set the DPI comfortably. You determine the pointer speed. The button for adjusting the pointer speed is easy to reach on the Evoluent D. Located behind the scroll wheel, it allows you to quickly adjust the pointer speed for different tasks: choose a higher speed (higher DPI) to make the pointer move faster for general use; choose a lower speed (lower DPI) to make the pointer move slower and more precise for drawing, photo editing, etc. The nice thing is that four lights indicate the different pointer speeds from slow to fast. Plug and play. The Evoluent D can be connected to the computer without any manual configuration. Just plug the USB cable of the wired version or the USB receiver of the wireless version into your computer and start working. The USB receiver of the wireless version of the Evoluent D can be stored behind a magnetic battery cover so you never lose it. The laser sensor ensures reliable mouse pointer movement on most surfaces. Cool features. The Evoluent D has useful features for more efficiency at work. The Excel Horizontal Scroll feature lets you scroll horizontally in Microsoft® Excel® by pressing a thumb button and turning the wheel. The Smart Scrolling feature lets you dramatically adjust the sensitivity based on the speed at which you turn the wheel - from slow and precise to hyper-fast for scrolling through long pages.The Eye Comfort Control lets you reduce the brightness of the screen to reduce eye strain by simply turning the mouse wheel. You can easily adjust the brightness of the screen to match the ambient light.