About this itemHigh-quality Interchangeable lenses: The headband magnifier provides 4 interchangeable lenses with different magnifications (1.5X, 2.5X, 3.5X, 5X) to meet your different needs. The lenses are made of acrylic resin with a surface hardness of 5H, which is more wear-resistant and durable.Light and Comfortable: Ergonomic glasses frame, light weight. The sponge on the front of the head magnifying glass frame makes it more comfortable to wear. The attached headband can effectively prevent falling, so it is easier to work for a long time.Adjustable Brightness Levels: The head mount magnifying glasses has 2 LED lights, two brightness levels, soft light and strong light. It can provide sufficient brightness in any dark or dim environment, providing excellent light for lighting detailed surfaces.USB High-efficiency Rechargeable Battery: With USB charging, you no longer need to buy batteries, which reduces weight and saves money and energy. It can be fully charged within 1 hour, and can work for 8 hours after fully charged, which greatly extends the working time of the LED.Versatile Usage: View workpieces or text enlarged to 500 percent of the original size in high definition. This LED head magnifier is suitable for everyone, especially the elderly, amateurs and professionals. Perfect for reading, needlework, repairing circuit boards, painting, watch repairing and handicrafts.