AZFUNN Headband Magnifier for Close Work, Handsfree Headlamp with Magnifying Lens 1X 1.5X 2X 2.5X 3.5X, Head Mount Magnifying Glass for Reading, Sewing Crafts, Repair, Jewelry Loupe

Features: 5 types of lenses: 1X, 1.5X, 2X, 2.5X, 3.5X Single slot, cannot be used in stack. The slot can be adjusted back and forth. The lens can be flipped up 90º. The angle of the light source can be adjusted. There are two ways to wear the eyeglasses bracket and headband. Nose bridge support design. LEDS: Lens material: Acrylic 5 kinds of magnifications: 1X, 1.5X, 2X, 2.5X, 3.5X 5 kinds of focal length: 500mm, 330mm, 250mm, 200mm, 140mm Removal and installation of lenses: 1.Fingers hold the lenses at the left and right ends, and pull them out. 2.Select the lens you need and insert the interface above the lens into the lens slot. Safety precautions: 1.Do not put the magnifying glass in the direction of direct sunlight, so as not to cause fire. 2.Do not use the magnifying glass to observe the sun so as not to burn your eyes. 3.Please clean the lens with a soft cloth or a mirror paper. 4.Lenses can also be cleaned with a small amount of detergent and wet cloth, and then wipe with clean wet cloth. 5.Do not use alcohol, gasoline and other chemical liquids to wipe lenses and shells.