This combo is built on decades of scientific expertise in human interaction. From a focus on ergonomics to MagSpeed™ scrolling to Perfect Stroke keys, this combo enhances comfort and performance. Designed for highly specialized workflows. Can zip through 1,000 lines of code in a second or scroll with line-by-line precision. Crafted for stability with every keystroke fluid and accurate. Designed to free up more space for working and is easily storable. Logi Options+ lets users customize their MX Series experience, streamlining repetitive tasks by assigning button shortcuts to optimize workflows. Allows action presets in popular applications and even sets tracking speed. Versatile, sleek and stylish, the design and profile of this combo make it an easy fit on any desktop.