5 ms·

You need it if you want to turn off or change the noise cancellation mode.

• hckrnwsthrwwy 7y ago
  There is a button that cycles through high-low-no noise cancellation on mine
  • rconti 7y ago
    Not on the first gen, however, I had no use for the app and deleted it after the first time I played with it. My plan was to download the app whenever I wanted to do something, then immediately delete.
  • tty2300 7y ago
    By default the button is set to use voice controls with your phone. The app let's you make it do anc controls
  • amlozano 7y ago
    When you buy a new pair these days, pressing that button causes the headphones to say "Configure the action button in the Bose Connect App"