Binocular hands free magnifier comes with interchangeable lenses and LED illumination. 4 different lenses offer 1.5X, 2X, 2.5X and 3X levels of magnification. The removable LED magnetic lamp can either be used with the visor or can stand alone as an additional light source for other tasks. Adjustable headband has a flip up visor when magnifier is not needed. LED illumination combined with different magnificaiton options makes this a great tool for a low vision user who wants to focus on a close up task yet still keep both hands free. It is an excellent low vision aid. Light operates on 3 AAA batteries.