Hands-free magnifying glasses with LED lights, perfect for close work! This adjustable, head-mounted magnifier is ideal for jewelry making, sewing, reading, and craft repairs (8X 15X 23X). Light Source: Features an LED light on each side, powered by three LR1130 button cell batteries (easy to replace – push and slide!). Optimal working distance: 6cm to close range. Versatile Use: Ideal for mechanical processing, electronics repair, watch repair, micro-engraving, printing, jewelry appraisal, antiques, calligraphy, painting, and examining other small objects. Key Selling Point: Offers multiple magnifications! One lens provides 8x magnification, and another provides 15x. Combine them for a powerful 23x magnification. Choose the magnification you need! Adjustable Lighting: Each side features an LED light with two brightness levels: strong and weak. Comfortable Design: Use both eyes simultaneously to reduce eye strain and improve efficiency (though both eyes cannot focus at the same time). When not in use, the lens barrel can be rotated 180 degrees upwards without removing the glasses. Independent Light and Battery Design: The LED lamp head and battery compartment are separate, preventing the light source from shifting when adjusting the magnifier. No need to constantly recalibrate the light. Adjustable Temple Length: Customize the fit! Users can adjust the temple length to suit their face shape for maximum comfort. Adjustable Nose Pads: The nose pads can be adjusted to fit the shape of your nose bridge, making them suitable for a wide range of users. Adjustable Lens Barrel Position: The lens barrel can be adjusted horizontally by 5mm on the bracket, allowing you to customize the fit based on your face width and eye distance. How to Use: 1. [Changing the Light Source] A. The battery compartment has 3 settings: "high light". Align the indicator arrow on the battery cover to the desired setting to change the light source. B. Pull the LED lamp head towards the lens barrel to bring the light closer to the lens and improve illumination. 2. [Installing and Removing Lenses] A. To increase magnification, install an expansion lens. Align the raised indicators on the outer frame of the expansion lens with the lens barrel's installation slot, place the expansion lens, and tighten it clockwise. B. To remove the extended lens, unscrew it counterclockwise and remove it. 3. [Bracket Adjustment] There are raised indicators inside the glasses temple. Align with the groove on the inside of the temple and pull or push the temple legs to adjust the length. 4. [Lens Barrel Adjustment] Adjustment screws are installed at the link between the lens barrel and the glasses frame. Loosen the adjustment screw slightly, and the lens barrel can be adjusted horizontally on the bracket. After adjusting to the correct position, tighten the screws. 5. [Replacing the Battery] A. Set the indicator arrow on the battery cover to the "Turn off the light source" position, then press the battery cover and continue to turn it back to the "Battery compartment open" marking to open the battery compartment. B. Take out the old battery and replace it with three new 1130 button cell batteries. Align the indicator arrow on the battery cover with the "Battery compartment open" marking and press the battery cover. There are "A" and "B" on the two battery covers and the battery compartment respectively. When installing the battery cover, battery cover "A" must correspond to battery compartment "A" and battery cover "B" must correspond to battery compartment "B". Turn forward to the "off" position to complete the battery replacement.