Features: - Single 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 close range because focus may fail when using both lenses simultaneously. - 6 Interchangeable Lenses - 10X, 15X, 20X, and 25X magnifications can be quickly interchanged and stored in the corresponding lens storage box. - 2 Adjustable LED Lights - Help illuminate work in low-light conditions (6 button batteries included). Rotate the LED switch cover approximately 30 degrees clockwise from the dot to the light mark to turn on. - Detachable Bracket and Headband - Use the comfortable eyeglass frame or switch to the headband for secure fit and reduced fatigue during extended use. - Wide Application - Suitable for mechanical processing, beauty & makeup, jewelry appraisal, clock repair, and miniature engraving; makes a great gift. Specifications: - Magnification levels: 10X, 15X, 20X, 25X - Close focusing distance: 5cm - 25.9cm (0.2in - 10.2in) - Power source: 6 x LR1130 batteries - Material: ABS + optical lens - Size: As shown in picture - Color: Black - Quantity: 1 set Notes: - Please allow 0-1cm error due to manual measurement. Ensure you are comfortable with this before purchasing. - Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: - 1 x LED eyewear bracket - 6 x lenses - 1 x headband - 1 x user manual