Logitech Ergo M575 Wireless Trackball Mouse With Bluetooth,

Ergonomic comfort design, relaxed hand and arm: the comfortable, sculpted ergonomic shape naturally fits your hand. smooth thumb control, precise tracking: great cursor control on any surface. adjust the cursor speed with logitech options software. perfect for tight workspaces: because the trackball doesn’t move, it’s perfect for tight workspaces and busy desks. 2 ways to connect and multi-os: connect simply with bluetooth or the usb receiver and never worry about drop-offs or lag up to a 33 ft (10m) range. plastic parts in ergo m575 include post consumer recycled plastic (graphite/black: 50%, off-white: 21%). uses fsc-certified paper for responsible packaging. up to 24-month of use from a single aa battery with the usb receiver, you might just forget your trackball uses batteries at all. convenient controls: moving between documents or b