I heard a rhythmic nosie on my left earbud when is use noise cancelling!!
Do I need to use warranty service??
Hear noise in noise cancelling mode
Contacting the support is always the best.
Do it, they will be happy to help you.
Service department is probably the best but you may want to set them if you have not done that and make sure they are also up to date on the firmware as that may have been an issue depending on which device you may have had.
Those would be what they would ask you to do potentially before having you do a warranty return…