ERGONOMIC DESIGN FOR MORE COMFORT: To achieve a more comfortable, natural hand position, adjust the trackball angle between 0 and 20°. Compared to a standard mouse, there is 20% less muscle fatigue*. The precision scroll wheel has a handy middle click and horizontal scrolling. ADVANCED PRECISION-MODE TRACKING: Easily switch between tracking in speed and accuracy modes. MULTI-COMPUTER WORKFLOW: Use Logitech FLOW technology to move your files, links, and cursor between two devices. USB-C CHARGING BATTERY: 3 hours in 1 minute, up to 4 months on a full charge* Depending on the user and computer environment, it could change. *DUAL CONNECTIVITY: Use the Bluetooth wireless technology or the included USB receiver to connect up to two Windows or Mac OS computers. Wireless range of up to 10 meters. ** * USB receiver that works with Windows 8 and Windows 10 or later