?High Quality Interchangeable Lenses?The headband magnifier offers 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. ?Humanized Design?The head mount magnifier is designed for your comfort, with a soft sponge inner lining and an attached elastic strap, which effectively prevents the magnifier from falling. The glasses frame has rubber nose pads that make it more comfortable to wear for long periods of time. ?Bright LED Lighting?The head mount magnifiers have 2 LED lights built into both sides of the frame to enjoy a better view. It can provide sufficient brightness in any dark or dim environment and provides excellent light for illuminating detailed surfaces, reading for long periods or working on hobbies. ?High efficiency rechargeable USB battery?The magnifying glasses can be charged with the included charging cable. You no longer need to buy batteries, reducing weight and saving money and energy. Charging is quick and easy, and the glasses can be fully charged in just 1.5 hours. ?Widely used?Movable lens slot is used to adjust the focal length between lens and object, and the distance between lens and eyes. Perfect magnifying glasses with light for close-up work such as the elderly, sewing, crafts, beauty, painting, dentists, electricians, jewelers, This freehand magnifier will make your work easier and more precise.?Widely used?Movable lens slot is used to adjust the focal length between lens and object, and the distance between lens and eyes. Perfect magnifying glasses with light for close-up work such as the elderly, sewing, crafts, beauty, painting, dentists, electricians, jewelers, This freehand magnifier will make your work easier and more precise. ?High efficiency rechargeable USB battery?The magnifying glasses can be charged with the included charging cable. You no longer need to buy batteries, reducing weight and saving money and energy. Charging is quick and easy, and the glasses can be fully charged in just 1.5 hours. ?Bright LED Lighting?The head mount magnifiers have 2 LED lights built into both sides of the frame to enjoy a better view. It can provide sufficient brightness in any dark or dim environment and provides excellent light for illuminating detailed surfaces, reading for long periods or working on hobbies. ?Humanized Design?The head mount magnifier is designed for your comfort, with a soft sponge inner lining and an attached elastic strap, which effectively prevents the magnifier from falling. The glasses frame has rubber nose pads that make it more comfortable to wear for long periods of time. ?High Quality Interchangeable Lenses?The headband magnifier offers 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.