Headband 3 LED Illuminated magnifier, 31 Multiples can be combined. Glasses magnifier type, light weight, easy to carry and convenient to use. USB Charging battery inside, long standby, 8+ hours using time after fully , do not need to worry about the battery. Suitable for reading, soldering, jewelry loupe, also a nice magnifier for embroidery. Headband height, elastic adjustment wheel, suitable for different head and make you comfortable to use. Removeable battery box, more safe to use. Type: Magnifying Glass With Led Light Magnification:1X 1.5X 2X 2.5X 3.5X 8X(Can form 31 multiples) Length: 35-500MM Battery: 8+ hours using time when fully Color: White Material: ABS+Acrylic Package Contents: 1 x Head-mounted reading glasses 1 x Charging cable 5 x Lenses 1 x Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.