This listing is for a used ELECOM EX-G M-XT3DR wireless trackball mouse in black. It features an ergonomic design for comfortable use, a side-mounted trackball for precise cursor control, and a scroll wheel for easy navigation. The mouse also includes dedicated 'Forward' and 'Back' buttons, as well as a 'LOW' / 'HIGH' DPI switch for customizable sensitivity. It operates wirelessly via an included USB receiver, making it perfect for desktop or laptop use without the clutter of cables. The mouse is powered by AA batteries (not included) and is in good working condition with minor signs of wear consistent with normal use. Ideal for users seeking a comfortable and efficient input device.