1. Six sets of interchangeable lenses with different magnifications can be freely combined, with a total of 21 combinations. 2. The headband type enables hands-free amplification, which is more efficient and convenient. 3. Equipped with two LED lights with colored caps to create different atmospheres 4. Acrylic optical lenses are scratch-resistant and durable. 5. Ideal tool for reading and inspecting small print, text, parts, coins, jewelry, etc.