Worldoor &reg; 20x Magnifying Glass Headset Loupe Magnifier Lens Visor with 2 LED Light New Fashion Made by high quality flash module, 100% brand new. Lighting Power : two CR1620 button batteries Other: taken in kind, can not be excluded artificial color caused by different monitor Suitable for hands freeindustrial electronics , laboratory , medical , coins , jewelry, 20 times the size of about : 170x150x45 mm lens effective diameter : 16 mm