headphones

I have just discovered the bliss offered by noise cancelling headphones!! I had thought they would only be good for the really severe, and so had never considered them for myself. However I had started using my ear buds (the ones I use for Audio books) in busy places, and whilst good at muting...

I care for someone with severe ME who is very sound sensitive. They are using ear plugs and some Bose noise cancelling headphones but that is not helping enough. Please has anybody any advice, e.g. are noise defenders good, are they better than noise cancelling headphones. Any help or advice...