Features： 1、8X Main lens, 15X extension lens can be mounted so that magnification up to 23X. Using two lens alternately can relieve visual fatigue and improve working efficiency. When not in use, the lens barrel can be turned up, do not need to take off the glasses. 2、 Gears LED light, soft light and high light to cope with different conditions. 3、Glasses leg bracket, nose bridge bracket can be adjusted for comfortable wearing. 4、Lens barrel position can be adjusted, can move 5mm / 0.2in horizontally on the bracket according to the width of the face and the distance between the eyes. 5、Magnifier can be rotated up and down 180 degrees on bracket, the whole magnifier glasses does not have to be removed when not in use, convenient for re?use. Specification： Item Type: Glasses Magnifier Material: ABS, optical resin lens Color: Black + White Magnification Focal Length Main Lens 8XMain Lens 62mm / 2.4in Extension Lens 15XExtension Lens 33mm / 1.3in Maximum Magnification 23XCombination Magnification 21mm / 0.8in Battery: 6 x LR1130 button battery (Not included) Lighting Source: 2 LED lights Unfolding Size: Approx. 155 x 150 x 40mm / 6.1 x 5.9 x 1.6in Folding Size: Approx. 60 x 155 x 40mm / 2.4 x 6.1 x 1.6in Suitable for: 1. Read newspapers, documents, maps 2. Repair electronic parts, jewelry, clocks, mobile phones 3. Beauty 4. Identification of antiques and other operations Operation method: 1. Light source switch: A. There are three scale marks above the battery compartment, which are respectively "Turn off the light source", "Soft light" and "High light". The arrows on the battery cover can be rotating and aligned to the point where no scale marks is used to switch the light source by technology B. Move the LED cap to the lens barrel, the lamp cap closer to the lens, can increase the lighting effect. 2. Lenses Installation and Disassembly: A. When enlarging magnification is needed, expansion lenses can be installed.There is a bulge indication on the outside edge of frame of the expansion lens. Put the lens mounting slot aligned with the lens barrel into the expansion lens and tighten it to the right. B. When the expansion lens needs to be removed, unscrew the expansion lens to the left and take it off. 3. Support adjustment: There is a convex point on the inside of the glasses leg, and the glasses leg is pulled out or pushed towards the scale slot below the inside of the bracket to adjust the length. 4. Adjustment of lens barrel: adjusting screws are installed at the connection between the lens barrel and the lens frame.By slightly loosening the adjusting screw, the lens barrel can be adjusted horizontally on the bracket. After adjusting to the appropriate position, tighten the adjusting screw. 5. Replace the battery: A. Adjust the indicator battery on the battery cover to the "Off Power" position, then press down the battery cover and continue to rotate backwards to the "Battery Open" sign to open the battery compartment; B. Remove the old batteries and replace the 3 new LR1130 button batteries. When the indicator arrows of the battery cover is aligned with the marks "Battery bin open" and the battery cover is pressed down, the "A "battery cover shall be aligned with the "A" battery bin, and the "B" battery cover shall be aligned with the" B" battery bin, and the battery replacement shall be completed by rotating forward to the "Power Off" gear interface. Package List： 1 x Glasses Magnifier 1 x Manual