It's a cheap toy, reminding me on those toy telescopes in a colourfull box with pictures from Hubble or on those toy microscopes in a colourfull box with pictures from a scanning electron microscope on it.
On that webpage a resolution of "Down to 1 micro" (sic) is claimed. That sounds much more spectacular than it is: a regular, cheap achromat objectieve 4/0.10 has a resolution of around 1.40 µm, a 10/0.25 reaches easily 0.65 µm, a 40/0.65 around 0.30 µm, an oill immersion 100/125 used at 1.25 around 0.20 µm.
The website tries to create the impression that such a gadget can easily replace a desktop microscope, leaving the fact alone that a desktop microscope is slightly more than magnification and resolution only. A microscope is as much about resolution and magnification as it is about coherent illumination to reach those resolutions and precise focussing controls to achieve a sharp image at those high magnifications.
Picture below shows one of those small Russian microscopes from Zenit-LOMO, forming some kind of a bridge between toys and "real microscopes".
These are seen here from from time to time on flea markets for a few €/$/£. The package (if it's complete) include "real" achromatic objectives 8/0.20 and 20/0.40, "real" Hughian eypieces 7, 10, 15.
Regarding resolution, the set easily outperforms the gadget mentioned above (max. 20/0.40, resolution around 0.38 µm) and at least it looks, feels and is being used like a "real" microscope. That might come in handy, f.e. forkids: as far as I know, high school biology labs/classrooms aren't equipped as of yet with smart phones and magic "Fingertip Microscopes".