Logitech MX Vertical Wireless Mouse – Advanced Ergonomic Design Reduces Muscle Strain, Control and Move Content Between 3 Windows and Apple Computers (Bluetooth or USB), Rechargeable, Graphite in Computer Mice by Logitech Style: Mouse Buy Now Connectivity Technology: Wireless, Bluetooth, USB Brand: Logitech Series: MX Vertical Color: Graphite Number of Buttons: 4 About this item: Details ADVANCED ERGONOMIC DESIGN: - Places your hand in a natural handshake position using a unique 57-degree angle, preventing forearm twisting and reducing muscular strain by 10 percent (As compared with a traditional non-vertical mouse. Based on Logitech Study, September 2017) HYPER-EFFICIENT TRACKING: - 4000 DPI high-precision sensor provides precise tracking that requires 4x less hand movement compared to a traditional mouse with a 1000 DPI sensor CROSS-COMPUTER CONTROL : - Game-changing capacity to navigate seamlessly on three computers, and copy-paste text, images, and files from one