Simplify and expand your PC or laptop computer use with Logitech MX Ergo bluetooth trackball. This is the ideal alternative to mice and touchpads. With an adjustable hinge that permits you to tilt the ergonomic trackball mouse between 0 and 20 degrees, you can find a more natural hand position. With less muscle strain and greater comfort, finally put your focus back on the important things at hand. We all know how frustrating runaway cursors are, and this advanced trackball offers superior precision and control. Simply press the advanced tracking and precision mode button to change your cursor’s speed and accuracy. The trackball also includes a multiple computer use function that permits users to switch between two devices seamlessly. Logitech Flow technology included with the product enables you to copy and paste text, images and files across multiple computers. This makes file transfers more convenient and boosts your cross-device experience. A precision-scrolling wheel lets users scroll horizontally and has a convenient middle click. With its powerful fast-rechargeable battery, using the Logitech MX Ergo wireless trackball mouse for hours isn’t a problem. Made from lithium polymer, this battery holds power for up to 4 months on a full charge. What’s more, just a minute of charge gives this wireless mouse up to a full day of use. So if you’ve got a deadline looming and you’re in for the long-haul, you won’t let technology slow you down.