<b>Logitech ERGO M575 Wireless Trackball Mouse</b>N/AN/AMeet ERGO M575 a wireless trackball with easy thumb control. Forget about sliding around a mouse or moving your arm to move the cursor. The ergonomic sculpted shape of ERGO M575 minimises movement and maximises comfort while keeping your hand and arm relaxed also making it perfect for tight workspaces and busy desks.N/AWith two ways to connect via Bluetooth Low Energy or the USB receiver the trackball provides you a powerful stable signal with a 10-metre (33-ft) range. A single AA battery lasts up to 24 months with the included Unifying USB receiver and up to 20 months with Bluetooth Low Energy.N/AWireless range and battery life may vary depending on user and computing conditions.N/AN/AErgonomic comfort design relaxed hand and arm: The comfortable sculpted ergonomic shape of this mouse naturally fits your handN/AN/ASmooth thumb control: Track precisely with great cursor control on any surface and easy thumb-operated trackball. Adjust the cursor speed with Logitech Options softwareN/AN/APerfect for tight workspaces: Because the trackball doesnt move its perfect for tight workspaces and busy desks and fits in seamlessly alongside your computer and keyboardN/AN/ATwo 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) rangeN/AN/AMouse design includes sculpted post consumer recycled plastic: The M575 uses 50 percent for the graphite/black and 21 percent for the off-white; also uses FSC-certified paper for responsible packagingN/AN/AUp 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 allN/AN/AConvenient 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