The Ergo M575S Trackball Mouse is a lightweight and eco-friendly wireless mouse designed for personal computers and tablets. It features smooth optical tracking and a comfortable ergonomic design, making it ideal for long hours of use. The mouse is battery-powered with a long battery life of up to 18 months, and it comes with 1 AA battery included. With customizable buttons and a range of 10 meters, this trackball mouse offers precision tracking and improved forearm posture for a more efficient and comfortable computing experience.