In my lab I have a Bysameyee Head-Mounted Magnifier.

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If you want to buy, see here:

Vendor	Product
Amazon USA	Bysameyee Magnifying Glass with Light for Close Work, Rechargeable Lighted Head-Mounted Magnifier Visor with 2 Jeweler's Loupe LEDs and Interchangeable Headband for Reading, Jewelry Work, Watch Repair

Documentation

I keep my documentation for this equipment here:

5 Interchangeable Glasses: There are 1.0X, 1.5X, 2.0X, 2.5X and 3.5X magnification lens can be choose for different hand work. High clarity optical acrylic lenses with good magnification in a solid case with lens holder, space-saving and protective.
Lightweight and Easy to Assemble: This magnifier headset is USB charging, reduce the burden on the head and more comfortable to use. Snap in and out the lenses are very easy; the lenses can be adjusted more than 90 degrees and be flipped up very easily when not in use.
Adjustable and Flexible Lens Slot: Moving the magnifying glass lens slot to adjust the distance between your eyes and the lens to meet different needs, ensuring accurate illumination of the light source on the surface of the object. What’s more, interchangeable headband makes this useful for those who wear glasses.
Adjustable LED Lights: Handsfree Reading Magnifying Glasses features two energy-saving and ultra-bright LED lights. The lights can be adjusted by pressing the light power switch.
Versatile Applications: Make your hands free while doing the job such as eyelash extensions sewing, needle work, knitting, cross stitch, embroidery (1X to 2.5X ) or close working like soldering, coins, stamps, jewelers loupe, modeling, watch repair, crafts, eyelash extensions, manicures, etc. (3.5X)