Logitech M570 Wireless Trackball Mouse provides ergonomic comfort and precise control with its sculpted shape and smooth blue trackball. Designed to stay in one place, it saves desk space while supporting the hand for long-term use. This model features programmable buttons, a scroll wheel, and the reliable Logitech Unifying receiver for a stable wireless connection. The dark gray finish and compact design make it a versatile addition to any workstation. Includes the original battery cover and USB receiver.