1.more comfortable to wear: you can put the head magnifier on your head like a pair of glasses. Ergonomic frame design. The mirror foot is detachable and can be changed into elastic band. This headband magnifying glass is lightweight and doesn't feel any burden or discomfort. 2.high quality, adjustable LED lamp: head with magnifying glass, equipped with a lamp with high quality LED lamps. The movable magnifying glass lens slot can adjust the distance between the eyes and the lens according to your different needs, so as to ensure that the light source can be accurately illuminated on the surface of the object to be viewed, which is more convenient to use. A magnifying glass lamp that can be used as a headlamp at night. 3.relieve eye fatigue: through acrylic optical lenses, you can easily see things. Relieve eye fatigue and release hands when working for a long time. 4.different uses: perfect glasses magnifying glass, suitable for dentists, electricians, jewelers, sewing, crafts, beauty, painting and old people working close. [Product Magnification]: 1x, 1.5x, 2x, 2.5x, 3.5x, 8x (31 magnifications possible) [Lens Focal Length]: 35-500mm [Battery Type]: 3 x AA batteries (factory included) [Light Source]: Three LED lights (adjustable in four directions) Color: White Material: ABS+Acrylic Package Contents: 1 x head-mounted magnifying glass 1 x lens cleaning cloth 6 x acrylic lenses 1 x Chinese and English instruction manual