[passtheglass]

You don't need a mobile app to set these headphones up at all. Everything is available on the device with phyiscal buttons (part of the reason it's such a good pair of headphones), the tech existed before people became conditioned on having apps for everythng.

[lxgr]

As far as I know, you can't manage the list of paired devices from just the headphones, as well as managing the noise cancellation level on the original QC35.