Based on that, you’re likely referring to the (or similar model number, like V520/VT3800) — a popular, low-cost USB microscope or endoscope camera. Here’s why that write-up was probably interesting, and what you should know:
It sounds like you’re referencing a specific article or review titled i--- V720 Camera App For Pc
If you meant a (not a microscope/endoscope), let me know and I’ll revise. Otherwise, that write-up was likely interesting because it revealed the gap between cheap hardware and surprisingly usable PC software. Based on that, you’re likely referring to the