Re: QC35 and QC30 for communications
There were no changes to the microphone hardware. There are differences in the firmware and those are related to Google Assistant.
From the Bose website:
What is the difference between QuietComfort 35 wireless headphones and QuietComfort 35 wireless headphones II?
QuietComfort 35 headphones II offer the same unmatched combination of acclaimed noise reduction technology, wireless freedom, audio performance, dual-microphone system and 20-hour battery life as QuietComfort 35 headphones. However, QuietComfort 35 wireless headphones II also have a new Action button on the left earcup. In countries and languages where the Google Assistant is available, that button gives you instant access to the Google Assistant. In countries where the Google Assistant is not available, it lets you quickly toggle through three different ANR settings for optimal performance wherever you go.
You mentioned first-hand knowledge; I'll be getting my QC35 II soon. That hasn't been a high priority because I don't use Google Assistant, and I wasn't expecting any other changes.
You asked, " @ST is there anything you can add, as to whether anything mic/call related was changed from original QC35 to series 2?"
Thanks for asking.
I haven't got QC35 II yet. I'll let you know what I hear when I do.
@ST First of all, I guess I was looking for more of a technical/factual answer to my question. Like, was anything intentionally changed that might help with the phone calling situation. For example, was the microphone hardware design modified in any way? Was there intentional software (firmware) changes that were put in to address the microphone issue? That type of thing.
That said, I would enjoy hearing your impressions when you do get a pair. To be totally honest, I'm really surprised Bose hasn't supplied you a pair (even before general retail availability) to try and to be able to speak about from first-hand knowledge.