Microscope is the thing that can zoom in and watch some stuffs.
But maybe you think microscope is only for laboratories.
Because it is too expensive and useless in the household.
But rarely, we need microscope to watch skin, pore, or something.
You know optical microscope is very inconvenience to watch something.
Because controling the microscope's diameter is very hard.
And if you watch something you must be frown.
Although these defects are exist, it is expensive.
But USB microscope is very convenience.
Do you know what is it?
It is a microscope that use with your computer or tablet pc.
You can see the figure on the computer's screen
So you don't need to make a face as you watch something.
And it is very easy to use.
You just connect with USB microscope and computer.
And enter into the application program about microscope.
And you can watch as you want.
I bought USB microscope in the online market within 50000won.
I have a tablet pc, so I use tablet pc when I want to zoom in something.
Anyway, USB microscope is very convenience and very cheap compare with its performance.
I think it is very useful.