1. Lens magnifications: 10X, 15X, 20X, 25X 2. Left/right double eye patches magnifier with LED 3. 4 different magnifications can be interchanged quickly 4. Bracket and headbands is interchangeable to each other 5. Powered by 3 x LR1130 button battery (included) 6. Application range: mechanical processing, electronic repair, jewelry appraisal, timepieces repair and miniature engraving etc
