Ergonomic comfort design, relaxed hand and arm: The comfortable, sculpted ergonomic shape of this mouse naturally fits your handSmooth thumb control: Track precisely with great cursor control on any surface and easy thumb-operated trackball. Adjust the cursor speed with Logitech Options softwarePerfect for tight workspaces: Because the trackball doesn’t move, it’s perfect for tight workspaces and busy desks and fits in seamlessly alongside your computer and keyboardTwo 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. System requirements: Bluetooth- Windows 10 or later, macOS 10.15 or later, iPadOS 14 or later, Linux and Chrome OS; Unifying USB Receiver- Windows 10 or later, macOS 10.15 or later, Chrome OS and LinuxPlastic 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 months of use from a single AA battery with the USB receiver. You may even forget your Logitech wireless trackball uses batteries at allConvenient controls: Moving between documents or browsing your favourite websites is a breeze with the large, easy-reach back and forward buttons and the precision scroll wheel