white noise sound produced by headphones: QuietComfort® 25 Acoustic Noise Cancelling® headphones
Bose product name
QuietComfort® 25 Acoustic Noise Cancelling® headphones — Apple® devices
Detailed description of the issue and steps to reproduce
While my "QuietComfort® 25 Acoustic Noise Cancelling® headphones — Apple® devices" do cancel external noise (to some extent, there is a noticeable amount of white noise I hear when they are on. In other words it is quieter with the headphones turned off, at last when there are no external sounds.
What environment do you experience the issue in?
Quiet home office
When did you start to experience the issue? Did it work correctly previously?
I noticed it today. I had not paid close attention previously, so I do not know when this started. The headphones were purchased new in May 2020.
Any troubleshooting steps you took
Turned on and off several times. Checked that the on light stayed on (no flashing, so battery must be ok)