Assuming "qc35" == "Bose QuietComfort 35", it also eavesdrops on the metadata of everything you listen to and sends it to Bose (and segment.io).

https://www.sfgate.com/news/article/Bose-headphones-have-bee...

Thanks for the link. This sort of thing is becoming a total pain; it seems that there's almost no gadget I might use that's not reporting my habits to someone.

After the scandal, they added an opt-out setting (but on the privacy policy page, where the nominal user will not think to look for it).

Tried those. Actually made the voices stand out more since everything else was more quiet :-(