Highlights: - The ergonomic design provides perfect assistance for the intensive, everyday movements of left-handed people - Vertically designed mouse prevents excessive strain and pain in the shoulder and wrist - Dpi switch for adjusting the pointer speed - 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 System requirements: Windows 10/8/7/Vista