It consists of two lenses: a main lens and an additional lens with a magnification of 2.5x and 45x. The additional lens is located at the handle. This is very useful for reading texts and for examining details on objects. Built-in LED illumination ensures even illumination of the observed object with light that is pleasant to the eye. Power is provided by three AAA batteries (not included). The button on the handle is used to switch the lighting on and off.