The Sanwa Supply Black Trackball Mouse MATB39BK is a new mouse with a sleek black color and a unique trackball design for precise control. It has a switching speed range of 800 & 400 counts, laser tracking method, and 2 buttons for functionality. This mouse is designed for right-handed use with an ergonomic scroll wheel, making it comfortable for extended periods of work or gaming. With wireless and wired connectivity options, including USB compatibility, this Japan-manufactured mouse offers a versatile and high-quality user experience for those seeking a reliable trackball mouse. New- Smoke free home- Thanks for stopping in check out my online thrift stuff added daily much love Shelly J 💚