Question about Bose QuietComfort Ultra

There is no "ANC off" mode like other headphones have.

However, you can add a custom mode and set the ANC to zero. However, I have not yet tried out how this sounds.

Unfortunately, you can't deactivate ANC mode or Transparency mode.

There is the "aware" mode, in which external noise is amplified and channelled to the ear.

There are 3 modes under which you can switch
-Perceptible
-Nois cancellin
-Immersin( sound from one direction when head is turned to watch TV for example)

Mode switching by push button on the handset