910-001202 Logitech M500S - USB 2.0, 1000 dpi laser, black 920-007127, 920-003100 Right-hand

910-001202 Logitech M500S - USB 2.0, 1000 dpi laser, black 920-007127, 920-003100 Right-hand M500S - USB 2.0, 1000 dpi laser, black With hyper-fast scrolling, you control the pace. Fly through long documents and Web pages with a single flick. Or switch to click-to-click mode for precise, line-by-line navigation. - Hyper-fast scrolling: A nearly frictionless scroll wheel lets you fly through long documents and Web pages with a single flick. There’s no holding you back. - Click-to-click mode :You get the control you need for precise, line-by-line navigation of lists, slides, images, and menus. - Scroll-mode switching: With the press of a button you can toggle between hyper-fast and click-to-click modes. The choice is yours. - 1000 dpi laser precision: Outperforms optical mice. Experience smoother cursor control on virtually any surface. - Forward/Backward buttons: Do more with your mouse. Move backward or forward through Web pages or navigate your photo albums with ease. - Side-to-side scrolling with optional software: Add side-to-side scrolling, application switching, and other programmable features.