SILENT-CLICK MOUSE: Suitable for silent working environments, whether preference or limiting distractions when working CONVENIENT DESIGN: A 6-button layout with built-in DPI switch button; You can switch DPI between 800/1600; Easy access layout with side buttons mapped as shortcuts for forwards and backwards the navigating history ERGONOMIC MOUSE: Vertical mouse promotes better positioning or the arm to reduces overall muscle used while operating a mouse; Reduces muscle strain within the wrist and arm for long working hours SMOOTH TRACKING MOVEMENT: The advanced optical tracking sensor provides smooth and accurate tracking movement on any type of surface; USB wired version (with the length cable of 5.9 feet (1.8 meters) for a stable connection WIDE COMPATIBILITY: Supports HID (Human Interface Device) spec; Designed for Windows 7, 8, 10 (Note: All of the features will work with Mac operating system); Package includes: 1 PERIMICE-519, 1 manual, and 12-month limited warranty
