MX Vertical is an advanced ergonomic mouse that combines science-driven design with the performance of Logitech’s MX series. The natural handshake position has been proven to reduce wrist and forearm strain related to repetitive strain injuries (RSI) and the 57° vertical angle is optimized for ergonomic posture without compromising a pixel of performance. A 4000 DPI high-precision sensor results in 4x less precision errors and the cursor speed switch allows you to instantly adjust DPI speed and accuracy. Powered for five months on a full charge and three hours from a one-minute quick charge.