Originally Posted by javajunkie
Well, my cheapie NCH (>$50) also has an "off" switch.
Are they only allowing the Bose?
The final two sentences seem to indicate otherwise. But because they
specifically indicated the Bose, now I'm confused.

I would argue that your are ok. Here is my logic:
The text states "Apparently some noise reduction headsets ...". The use of the plural implies the recognition that there is more than one brand. It then uses Bose as an example (bad use of the word 'specifically'). The intent seems to be to identify a class of headphone that allows explicit deactivation of the "noise reduction electronics". By allowing this deactivation, the headphone is essentially inert and qualifies as "non-electronic hearing protection equipment" instead of "electronic noise reduction equipment". Then stating "Passengers are allowed to wear non-electronic hearing protection during all phases of flight.", at least to me, allows for the use of any headphone that qualifies for the class of headphones described, whether of the Bose brand or not.
Best regards,
MB