The Bose QuietComfort 25 really are good and there is no App or smartphone required, just a single AAA battery - which lasts for ages. (The off switch is a real switch, not an electronic switch, so it does not run down the battery when turned off).
You can plug the supplied lead in to feed audio into the headphones, or you can remove the lead and just use them for noise cancelling only
They still seem to be available on Amazon for example, and come with a nice carry case.
