It's Headband Magnifying Glasses,set your hands free.Making work more convenient and comfortable.According to the usage you need,the bracket can be rotated upward or downward for 45 degrees,and ,the light can be rotated left or right for 25 degrees. It comes with 4 detachable Lenses (1.2X,1.8X,2.5X,3.5X), which can meet your different needs. It uses easy to replace 2 of No.7 AAA batteries. Get the best illuminating magnifier headset. The soft padding and adjustable turn knob on both sides ensures comfort and tight head wearing. High clarity optical acrylic lenses provides clear magnification. 4 Lenses packed in a box for easy carry and storage. Perfect for visual impaired and macular degeneration. Adjustable head band,suitable for almost all head sizes. For its simple use,it is broadly applied to manufacturing and processing precise product,and repairing camera,electric chemical product,electronic part of vehicle and computer etc.It’s also suitable for jewel processing,sewing,embroidery,stampcollection,electronic repair,reading,drawing and so on.it's a great choice for the elder,watchmakers,electricians, modelers,hobbyists,crafts workers and dentists.