Lighting design: The head mounted magnifying glass is equipped with 2 adjustable bright LED lights, which increase brightness and facilitate observation. It can be used in low light environments Comfortable Adjustable Headband: The eyeglass style headband design is adjustable and suitable for different people to wear, ensuring comfort during use Widely applicable scenarios: Suitable for various fields such as map inspection, circuit board repair, jewelry appraisal, watch repair, etc., meeting the needs of both professionals and amateur enthusiasts Lightweight and easy to wear: The headlight can adjust the angle and is powered by 2 No. 7 batteries (batteries not included). It is easy to wear and can be adjusted by turning the knob to adjust the tightness Multiple Magnifications: Provides multiple magnification options such as 1.5X, 3X, 7.5X, 9X, 9.5X, 11X, 15.5X, 17X, etc., with 2 lenses installed simultaneously to expand the range of use and flexibility