This headband magnifier is a high quality head-mounted magnifier with super bright LED headlights. It comes with 4 interchangeable lenses, 1.2X 1.8X 2.5X 3.5X magnification, to meet your viewing needs. The ergonomic design provides a comfortable fit, and these magnifiers provide good reading aid for people of all ages. Perfect lens The 1.2x to 3.5x magnification lens is perfect for sewing and knit reading and hands-free applications, while the 3.5X lens is perfect for soldering, building models, coins, stamps, jewelry identification, watches and electronic repairs, etc. Application range The perfect lens with adjustable magnifying glass is designed to be clear, lightweight, comfortable and ergonomic. It can also be used with reading glasses. Suitable for the elderly, amateurs and professionals. specification Product material: Acrylic lens ABS Magnifying glass size: 16x20cm Single lens magnification: 1.2X 1.8X 2.5X 3.5X Field of view: 520-620mm (1.2X), 230-320mm (1.8X), 150-250mm (2.5X), 80-120mm (3.5X), -Battery: 3 AAA (not included) Package includes 1 reading magnifying glass 4 Lens: 1.2X 1.8X 2.5X 3.5XAdjustable head circumference - The headband can be flexibly adjusted for different head shapes. The movable head magnifier lens slot can adjust the distance between the eye and the lens according to different needs to ensure wearing comfort. 4 interchangeable lenses - a variety of lens options (1.2X 1.8X 2.5X 3.5X), the lens is directly clipped to the lens slot, because the slot is in a small position, the lens distance can be adjusted, Packed in a stable housing for easy carrying and long storage. Advanced Optical Lenses - This illuminated magnifying glass featureslenses that are lightweight, scratch resistant and impact resistant. LED lamps have a service life of more than 100,000 hours, so you don't have to worry about light conditions anytime, anywhere. Magnifying glass with light - Super bright LED headlights - Can be used as headlights at night for enhanced day and night viewing, turned on or off with a simple switch at the top, powered by 3 AAA batteries (not included). we attach great importance to customer experience, your satisfaction is our top priority, if you encounter any problems, please contact us in time.