I ordered these from Gearbest at just under $20.
I wanted a budget but more convenient go pro video camera mostly for dirt biking down narrow trails.
They come with pretty good English instructions. I had it working in probably under 10 minutes with pictures up on my computer but for some reason the video only works sometimes, so I have probably 4 video’s that work out of about 15 that I shot. It seems the computer cannot read them or something. So I will consider them as a camera and pretty decent sunglasses (supposedly polarized lenses) and the video part as unfortunately a fail. So this will be my first defective product from Gearbest or other Seller from China in over 2 years (of placing quite a few orders). I consider them to still be worth what i paid, but if the video actually worked I would consider these to be a great buy as this technology I do not think existed just a few years ago unless of course you were James Bond.
http://www.gearbest.com/other-eyewear/pp_361961.html
Important Edit: I installed K-lite codec pack mega as suggested by Miller and the video camera now works. So I guess I am back to having 100% successful orders from China Direct sellers.
So I would call this a great Buy from my testing so far. Video and picture quality is not super great, definitely below my cell phone but after just showing this to someone she exclaimed “Hoohlllly for $20 US dollars”.
This is a picture from the glasses of 2 deer hanging out just below my deer ravaged garden.