<ul><li>Silent click mechanism (reduces clicking noise)1200 DPI optical sensor for accurate tracking. 4-way scroll wheel (vertical + horizontal scrolling) for easier navigation. “8-in-One” gesture/hotkey feature (perform 8 selectable commands) for added convenience. Durable button life rated for over 5 million clicks. Symmetric ergonomic design (suitable for both left‐ and right‐handed users). USB wired connection with a 150 cm cable for reliable use.</li></ul>