Ah, the head magnifier. Most geeky of headware short of LED-enhanced steampunk iris goggles. (Note to self: get/make LED-enhanced steampunk iris goggles!!!) This is not going to win you a fashion award. On the other hand, it’s great at things like reducing eye-strain, and reducing errors from misreading incredibly tiny writing on silk-screened PCBs or chips.
This shows my thoughts on the relatively inexpensive pair that I picked up, as well as it’s individual features. Your mileage may vary, especially due to things like your vision and age.
The YouTube video is HERE.
The Amazon link to the headgear is HERE.