The Elecom M-XT4DRBK-G Mouse is a wireless trackball designed specifically for left-handed users. The red ball on the thumb trackball allows for precise control, while the optical tracking method ensures smooth and accurate cursor movement. With six buttons and a sleek black design, this mouse offers a unique and comfortable alternative for those who prefer a left-handed mouse. Ideal for those in need of a reliable and efficient pointing device for their computer or tablet.