Multiple magnifications: this headband magnifying glass comes with 4 kinds of replacing magnification, two of each kind, they are 10X, 15X, 20X, 25X, which can meet your different demands You have to be very close to the object to focus it, which is more suitable for experts.Adjustable LED lights: the head mount magnifier contains 2 adjustable LED lights, which can help work in low light conditions, and also contains 6 button batteries, which can be turned on by rotating about 30 degrees clockwise, it is easy to operate and will improve your work efficiency.Interchangeable headband: the magnifying glasses have an interchangeable design, you can change the bracket into the headband to prevent it from falling off when you need to wear it for a long time, the attentive design will bring large convenience for you.Single eye observation: this magnifying glass is suitable for close work, so you can't use it with both of your eyes, it is suggested to use a single eye for viewing at the area only because the focus will fail when using both eye lenses at the same time.Widely application: this headband magnifier is lightweight, portable and durable, it is nice for mechanical processing, beauty and makeup, jewelry appraisal, clock repair and miniature engraving It is also a practical gift for your family and friends.