Meet ERGO M575-a wireless trackball with incredibly easy thumb control. This is the newest addition to the Logitech Ergo series that promotes increased comfort, lower muscle strain, and improved, more natural posture. Forget about sliding around a mouse or moving your arm to move the cursor. The ergonomic sculpted shape of ERGO M575 minimizes movement and maximizes comfort while keeping your hand and arm relaxed. With two ways to connect-via Bluetooth® Low Energy or the USB receiver-the trackball provides you a powerful, stable signal with a 33 ft (10 m) range. No need to move your trackball, so it's perfect for tight workspaces and busy desks. A single AA battery lasts up to 24 months with the included Unifying USB receiver and up to 20 months with Bluetooth® Low Energy.

Convenient controls: Moving between documents or browsing your favorite websites is a breeze with the ergonomic mouse's large, easy-reach back and forward buttons and the precision scroll wheel. Up to 24 months of use from a single AA battery with the USB receiver; you may even forget your Logitech wireless trackball uses batteries at all. Plastic parts in ERGO M575 include post consumer recycled plastic (Graphite/Black: 50%, Off-White: 21%). Uses FSC-certified paper for responsible packaging. Two 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 10m (33 ft) range. Optimal for tight workspaces: Because the trackball doesn't move, it?s excellent for tight workspaces and busy desks and fits in seamlessly alongside your computer and keyboard or laptop. Smooth thumb control: Track precisely with great cursor control on any surface and easy thumb-operated trackball and adjust the cursor speed with Logitech Options software. Ergonomic comfort design, relaxed hand and arm: The comfortable, sculpted ergonomic shape of this mouse naturally fits your hand.