"Can be adjusted many times, the family can share", "hotel standing, then, will be very convenient", "travel with glasses or lost glasses and other occasions can also come in handy" and other characteristics have also been well received.
In addition, there are comments that "know that this glasses in the 'emergency' very useful, but hope to be improved, so that it is 'in any case' are useful." For example, preset a number of degrees, adjust the knob can be immediately transferred to the desired degree.
dial vision adjustable glasses and reading glasses when using the degree will not be the same, so sometimes have to wear two glasses, and if you can preset multiple degrees, wholesale dial vison wearing a pair of glasses is enough.