The ZLOT vertical ergonomic mouse has a comfortable design that reduces wrist cracking and features two additional buttons. Its friction is low, and the USB cable is 1.5 m long. It comes with five button assignments and DPI settings, but there is room for improvement, such as better positioning of the additional buttons and an automatically-starting software driver. Comfortable vertical design Low friction and 1.5m long USB cable Customizable LED lighting and reprogrammable mouse wheel Five button assignments and DPI settings DPI settings control cursor speed