Vertically designed Hama EMW-500 mouse prevents excessive strain and pain in the shoulder and wrist. The integrated DPI switch allows you to customise the pointer speed, while the high-resolution optical sensor provides accurate and smooth cursor control. Other highlights: - Browser buttons for easy navigation - Rubberised surface for improved grip and comfort - Stowable USB receiver for space-saving transport - Separate on/off switch for energy-saving use - Selectable speeds (1000, 1400, 1800 dpi) System requirements: Operating system: Windows 10/8/7, Mac OS 10.10 or later