INTERCHANGEABLE CLARITY LENSES: Upgraded headband magnifier glasses provide higher magnification with 1.5X, 2.5X, 3.5X, and 5X lens options. Lenses are interchangeable based on the magnification needed. Made from high-quality acrylic optical material, the lenses are durable, water-resistant, and scratch-resistant. RECHARGEABLE USB DESIGN: Lightweight head-mounted magnifier eliminates the need for heavy batteries. Powered via USB with multiple power options including wall charger, phone, laptop, or power bank (not included). Offers quick charging and extended usage time. ADJUSTABLE BRIGHTNESS LEVELS: Built-in LED light features two brightness settings. Easily control the light with a single switch: press once for low brightness, again for high brightness, and once more to turn off. Provides ample illumination in low-light environments for clear visibility. Energy-efficient design delivers long-lasting performance. COMFORTABLE HEADBAND DESIGN: Features an elastic strap with anti-slip elements and soft forehead padding for reduced pressure and secure fit. Ergonomic frame allows hands-free use, ideal for extended tasks. Maintains position and lighting alignment when moving between locations. Designed for prolonged comfort during detailed work.