Usage Tips:["Features:\r\nSingle Eye Observation - With close focal length: 0.2-10.2in (0.5-25.9cm), it is suggested to use a single eye for viewing at area only because for focus will fail when using both eyes lenses at the same for time.\r\n6 Interchangeable Lens - 10X 15X 20X 25X magnifications can be interchanged quickly and put in corresponding lens storage box. \r\n2 Adjustable LED Lights - can help work in low-light conditions (6 * button batteries Included). Easily rotate the LED switch cover about 30 degrees clockwise from the dot to lamplight mark to turn on the light.\r\nDetachable Bracket and Headband - Comfortable eyeglass frame or switch to headband to ensure tight wearing and reduce fatigue for long for time use.\r\nWidely Use - Various lens for mechanical processing, beauty & makeup, jewelry appraisal, clock repair and miniature engraving, etc - Gift Idea.\r\n\r\nSpecification:\r\nMagnification level: 10X, 15X, 20X, 25X\r\nClose focusing distance: 0.5m-5cm\r\nPowered by: 6 x LR1130 Batteries\r\nMaterial: ABS + Optical lens\r\nSize:As the picture shown\r\nColor: Black\r\nQuantity: 1 Set\r\n\r\nNote: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 X LED Eyewear Bracket \r\n6 X Pair of Lenses \r\n1 X Headband \r\n1 X User manual"]