Bose QC 15 noise cancelling headphones

I have been given as a present Bose QC noise cancelling headphones as I do alot of plane travel it was thought they may help with noise reduction but as the tinnitus is 'internal noise' I just cant see how they can help.However I dont want to just dismiss that they could be of help so anyone any experience of using noise cancelling headphone?. Mr Nagler if you are reading this post I would welcome you thoughts as I value your comments. Thanks Happy new year tomorrow.
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