The Logitech Logi ERGO M575S Mouse is a wireless trackball mouse designed for ergonomic comfort and precise tracking. It features a unique color graphite and blue ball design, making it a stylish choice for any computer setup. With its optical tracking method and five buttons, this mouse offers reliable performance and easy navigation. Made by Logitech, a trusted brand in computer peripherals, this mouse is a reliable and efficient option for those looking for a comfortable and effective pointing device. Includes dongle and battery.