https://www.theverge.com/2017/9/21/16341742/bose-headphones-qc-35-ii-google-assistant-announced

Google and Bose are today officially announcing a new version of the headphone maker’s great noise cancelling headphones, the QC 35s. The big new addition is Google Assistant — or rather, a dedicated button on the headphones that triggers the Google Assistant.

The new branding is simply QC 35 II, and according to Google you set them up as usual via Bluetooth and then follow some instructions built into the Google Assistant app on either an Android phone (running Marshmallow or above) or an iPhone.