Using with Boeing787.
It also occurred in my house, battery use only.
And I felt increase another noise set ANC high.
So I try set Auto power off .
Thank you for you support.
First of all,I turned off auto power.
White noise remained audible.
Battery only,remove the battery and only the aircraft power
I tried,but it was a similar result.
When the connector is removed from the aircraft,the sound disappears,but when connected again,White noise has occurred.
I've done a lot of things.
When The Aircraft audio was low,the white noise was obviously reduced.
I don't know if it's the right way,but it had the number one effect.
In addition,there was hum noise when there was an iOS device charging.
It was eliminated by keeping it away from the controller.
Model;proflight2 XLR 5pin
Thank you for your post and welcome to the Bose Community.
I'm deeply sorry to hear that you are experiencing some white noise whilst using your ProFlight Series 2 Aviation Headset.
Would it be possible for you to test the headset in an alternative aircraft?
We'd love to gather some additional information and will be reaching out via private message! We look forward to speaking with you.
Charlotte G - Community Support