In principe we should not even talk about, not about content of NDA or NDA itself. But on other side Espressif is very open, so if you really need (for your product) deeper informations about the phy, sign NDA and ask them.
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.
![Smile :)](./images/smilies/icon_e_smile.gif)