Enhance your vision with this versatile magnifying headset equipped with LED lights for optimal illumination. Perfect for jewelers, watch repairers, elderly or low-sighted people who are dedicated to close work and precision processing. Note: the 8x small lens only works for right eye. With rechargeable 3-led light, the lighted magnifying glass with light provides sufficient illumination for the working area, thus you can see more clearly even in the dark. Please fully charge the lamp before using it for the first time. When using a single lens, you can use both eyes. Previous page Next page 1 How to Use? 2 Adjustable Headband 3 Adjustable Lens Angle 4 Product Structure Max Magnification: 14x for the right eye, 6x for the left eye. You can adjust the distance between the lens and eyes by sliding the whole lens slots, which are mounted on a slide rail., each lens has its own focal length. Please refer to the instructions. Focal Length: 1x≈19.69in, 1.5x≈12.99in, 2x≈9.84in, 2.5x≈7.87in, 3.5x≈5.59in, 8x≈2.46in Note: When using any single lens (1-3.5x), you can observe the object with both eyes. However, when using the small round lens or any combination lenses (magnification over 3.5x), please focus the object with only one eye, otherwise, the focus will fail. This magnifying glass with light is widely used for reading, painting, stamp collection, modeling, coin, cross stitch, jigsaw puzzles, electric welding, chip, jewelry, circuit boards, cell phone repair, leather and laboratory work, etc. Ideal Birthday / Christmas Gift for Husband, Wife, Father, Mother, Partner, Friends ...