Extend your input capabilities with a mouse from HP. Features Smart scrolling and zoom. - Enjoy effortless click-to-click zooming in CAD applications with QuickZoom and a single click of the thumb button. Get speedy scrolling with inertia effects in browsers and documents with Smart Scroll. Dedicated buttons. - Easily access your frequently-used commands with gesture buttons that open an application- or environment-specific radial menu. The dedicated middle mouse button is a convenient, comfortable alternative to the traditional scroll wheel click. Precision and peace. - Click exactly where you need to with an advanced laser sensor, 8200 dpi, and a poll rate up to 1000 Hz with a responsiveness of 1 millisecond. Stay focused with a design that helps reduce static friction and enables near-silent operation.