I have one of these. I’ve been using it for 2 years, but I only use it to clean my ears. It does a great job. You can see your own ear drum. That’s the stop point. Don’t clean beyond that.
Spoiler: it’s a clickbait detector! (The device is actually a “…a compact 360-degree wide-angle 1080p camera that’s perfect for use as an inspection device.”
They only show one example picture of what it can see. And it’s a blurry picture of an iPhone port that you could see with your naked eye just by looking at your iPhone.
I couldn’t see a port like that without magnification, and it’s hard to get light with magnification just right.
I can see this being useful for things where I just can’t get the magnifyer, light and my head in the right spot. Though it would be better as a borescope connected to my phone (via USB rather than this thing’s WiFi). Which you can get for about the same price.
I was thinking of using it to see stuff on a motherboard, etc,


