Kensington - Pro Fit TB550 Mouse - Optical - Wireless - Bluetooth - 2.40 GHz - Rechargeable - 1600 dpi - Trackball, Scroll - Wireless - Black

The MX Ergo S Plus is Logitech’s most advanced ergonomic trackball mouse yet, with a 20-degree tilt angle and a 10-degree detachable wedge, and precise thumb control - user-tested and certified by United States Ergonomics. The MX Ergo S wireless ergonomic mouse is sculpted to fit the palm of your hand while keeping it relaxed, and it tilts 20 to 30 degrees for 27% less muscle activity in the forearm, providing elevated comfort throughout your day. Work faster with 6 customizable buttons and a DPI button to effortlessly switch between speed and high-precision tracking. Now with 80% quieter clicks. For even more control that's tailored to your needs, assign time-saving shortcuts and Smart Actions using the Logi Options+ App. Connect your wireless mouse to 2 devices via Bluetooth or the included Logi Bolt receiver and switch between devices with a click of the Easy-Switch button.

Minimize movement and maximize comfort with the Logitech ERGO M575S wireless trackball mouse. Thumb control lets you move the cursor without moving your arm, while the sculpted ergonomic design fully supports your hand and keeps your forearm in a more natural position. This wireless ergonomic mouse has been developed by Logi Ergo Lab experts, user-tested and certified by ergonomists to give you 25% less muscle strain in your forearm . The smooth and responsive thumb control can be used anywhere – and since it doesn’t need to be moved, the ERGO M575S is perfect for tight setups and busy desks.

Kensington SlimBlade Pro Trackball - Optical - Cable/Wireless - Bluetooth/Radio Frequency - 2.40 GHz - Rechargeable - USB Type C, USB Type A - Trackball - 8 Programmable Button(s) - Symmetrical