Interesting stuff.
Looked for hearing aid specifications, didn’t find any.
In fact, there are no technical specifications and also the price seems rather unlikely to me (only 15 dollars)
Around 800 USD each for their top tier aids, if you check their buying section @lello58… Apparently there are many hearing aid manufacturers in China, out with the usual western manufacturers whom outsource there, they have their own home brew aids, I recall reading up about it, a couple of years back, they have their own dispensaries in major towns and cities… At over 1 billion inhabitants, it is little wonder they baulk at our prices, and make their own… I would imagine it is fairly easy for these Chinese manufacturers to replicate/clone the internal workings, and software, to make their own aids, they appear to clone everything else… So why not hearing aids, at around an 6th of the price, that’s the export price, and you can probably bet your bottom dollar, the actual local Chinese population will be paying half that, or even less… Cheers Kev 
I see experience in the acoustics field but nothing in hearing issues or hearing aid technology. That makes me very skeptical. Would they even qualify to be defined as hearing aids in the US?
China is way behind in the high tech HA’s. the big 5 HA’s are very expensive in China. BT ear buds is very common in China and very cheap.
This HA’s look more like hearing amplifier with a nice/powerful equalizer setting apps in the phone. Longer battery life.
No much info on the web page.
Yes, BTLE audio capabikity is featured on several of the latest HA’s. But can it actually improve hearing?
No. It is just a hearing amplifier. It might not be suitable for your hearing loss. You will hear some louder sound but how about clarity?
These intrigue me almost enough to buy a pair to fiddle with. Almost.
Their website’s security certificate is currently broken, and it wouldn’t load properly on my phone last night.
However, the video is on their Amazon US page along with the range.
They use interesting language to describe their Bluetooth - Bluetooth HD IIRC. I think it’s down to a mistranslation.
The $64,000 question is whether it really is what it says it is, or if it is just a load of circuits smashed together in a nice-looking box.