This Arrow Style Retractable USB PS/2 Cable Optical Mouse can be used for either laptop or desktop PC.This USB Optical Mouse is suitable for travel because of the small size and light weight. Optical Sensor with 800 dpi resolution. A extremely small optical mouse, compact design and light weight. USB interface for easy connection. Smooth, precise, easy to use wheel for scrolling. Scroll up and down directly without moving your hand. Hot direct plug & plug, no need external power. Designed for both left and right handed users. With extensible and retractable USB cable.Time to enjoy the benefits this Retractable Optical Mouse brings!