Features:

Interchangeable 2×Lens slots Design: 5 interchangeable lenses with 1.0X, 1.5X, 2.0X, 2.5X, 3.5X magnification, Multi lenses(1x to 6x) to meet your different tasks. It's for professional jewelry loupe, watch repair, electricians, Sewing, Crafts, Hobbies, Repair or as general reading aid.
High Quality Lenses: Made of shatterproof crystal clear magnifying acrylic lens designed, high definition, light weight. Ideal for people with low vision, hobbyists and professionals.
Adjustable Headband Optivisor: Headband magnifier has a rotary button design that can be used to adjust the size of the headband and is suitable for anyone. By rotating the button, you can adjust to the size that best suits your head shape, avoiding too big or too small.
Detachable LED Head Lamp: LED head light with 2 led has the function of disassembling and adjusting the direction of illumination. When using, it can adjust the illumination direction of led for more precise illuminating angle. The lighting unit can be taken down as an independent handheld flashlight for daily or outdoor exploring.Powered by 3 AAA batteries(Included).
Perfect for elderly, jewelry work, repairing, electricians, soldering, watch repair, painting, dentists, arts & crafts, sewing or as general reading aid.

Specifications:

Dimensions: Approx. 25 * 20cm
- LED: 2 pcs
- Lens: 5 pcs
- Power: 3 * 1.5V AAA batteries (included)
- Material: PC Lens/Environmental protection acrylic Headpiece
- Head circumference: Adjustable
- Single-plate lens magnifications: 1.0x, 1.5x, 2.0x, 2.5x, 3.5x.
- Bi-plate lens magnifications: 3.0x, 4.0x, 4.5x, 5.0x, 5.5x, 6.0x.
- Magnifications and Distance to objects:
1.0x 300 ~ 350mm
1.5x 240 ~ 260mm
2.0x 215 ~ 235mm
2.5x 205 ~ 225mm
3.0x 160 ~ 180mm
3.5x 135 ~ 145mm
4.0x 125 ~ 135mm
4.5x 110 ~ 130mm
5.0x 100 ~ 120mm
5.5x 80 ~ 95mm
6.0x 60 ~ 85mm

Package:

1x Head mounted Magnifier
5x Lens
3x Batteries

Head Mounted Magnifier Lens Lamp Jewelry Magnifying Glass Loupe LED Light Tool