Comment by anigbrowl

I am a bit skeptical. IT caught my attention because I recently ordered some parts, but then I recalled that all my existing gear from that supplier already has FCC certification. And indeed so does the base technology:

https://documentation.espressif.com/en/documentList?t=Certif...

It could be there's more to the story of what the person ordered, or it could be that CBP are misapplying the rules (quite likely under this administration), but it seems like some very overstated assumptions as written.