Illuminated Head Loupe binocular hands free magnifier with high magnification and LED illumination. Unit consists of four interchangeable hard coated acrylic lens, including 2X, 2.5X, 3X, and a 4X monocular. Each lens can be used separately or combined for greater magnification. Light can be positioned as necessary to enhance viewing experience. May be worn over glasses. Requires 3 AAA batteries (not included)