Highlights: - Vertically designed mouse prevents excessive strain and pain in the shoulder and wrist - DPI switch for changing the cursor speed (1000, 1400, 1800 dpi) - High resolution optical sensor for accurate and smooth mouse tracking - Browser buttons provide quick access to the forward/back functions in the Web browser for easy navigation - Rubber finish for improved handling and comfort - USB receiver stows away in the mouse for easy transportation - Separate on/off switch saves battery power System requirements: Operating system: Windows 10/8/7, Mac OS 10.10 or later