Laser pointers, also known as laser pens, are handheld devices designed to identify areas of interest using a coloured laser beam. They emit a narrow beam of visible light which produces a bright dot on the chosen surface.
Laser pointers are small, battery powered
devices which look similar to a standard pen. They may come with additional features such as a light, pen, stylus or keyring attachment.
They are used during presentations and visual demonstrations, and are popular in education and business. Common laser pointer colours include red, green and blue, which all suit different environments.