Just a follow up on my experience with Gearbest. After many support messages Gearbest has close the issue with me with the following statement,
Please connect WiFi on your tablet, set to local time zone of the time can be used without activation.
So this is it. Gearbest is selling a tablet with Windows Pro installed without an Microsoft product key to activate the system. In other words, Gearbest is leaving the customer to hope that Microsoft continues to support Windows 10 systems that are not activated. I believe this is misrepresentation. I am surprised that Microsoft does not address this with their OEM suppliers.