Led 15x Magnifier Eye Loupe w/ Head Band Jewelers Magnifying Glass Watchmakers 15x Head magnifier, make your repair more convenient and accurate. High power LED light, makes it available to work under insufficient sunlight or dark environment. Removable steel belt for head-fixing, you can easily fix the magnifier with your hands-free and eye-clamp-free. Ideal for jeweler, watchmaker, circuit board and electronics, coin and stamp connoisseur and so on. LED power: 2xCR1620 button cell batteries, which is included.