About this itemErgonomic 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 browsing your favorite websites is a breeze with large, easy-to-reach Back/Forward buttons and the precision scroll wheel..
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