Logitech MX Ergo Wireless Trackball Mouse, Bluetooth Or 2.4GHz with Unifying USB-Receiver, Adjustable Trackball Angle, Precision Scroll-Wheel, USB-C Charging Battery, PC/ Mac/ iPad OS - Black

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The precision mode button (DPI) lets you seamlessly switch between precision and fast-tracking modes. What it really comes down to, then, is whether or not the MX Ergo will let you perform your daily workflow without frequently stopping to activate the Precision Mode. The Logitech MX ERGO is a better ergonomic trackball mouse for office use than the Logitech ERGO M575.

The Logitech MX ERGO and the Kensington Orbit Fusion Wireless Trackball are wireless trackball mice with similar shapes.

Focus on the task at hand with the MX ERGO trackball from Logitech, specially developed for maximum precision and control even in working areas with limited space.

An LED above the Logitech logo begins to pulse; it will change to steady green once the lithium polymer battery is fully charged, which took about an hour in my case.EASY MULTI-COMPUTER WORKFLOW: Connect and work on two devices at once with the 2-channel Easy-Switch™ feature. It’s small enough to be left on the laptop at all times, but I use it on my Anker USB hub, about a meter away from the mouse. The idea of using a ball as a pointing device has been around since at least the 1950s as a way to control military radar displays, but it's currently a fringe alternative to the mouse as a PC peripheral.