Declining hearing can be linked to many things with regard to...

Declining hearing can be linked to many things with regard to your general health including Dementia / Alzheimer and other conditions. Always worth getting a audiologist to asses you to confirm there are no other issues and get a accurate audio-gram that can be used as benchmark to see if it is general aged based decline or something else. You won't have to buy their product. Self diagnosis may not be advantageous long term . There are strategies to hear in different environments that may help. You 100% need to confirm it is inner ear not brain related or something else related to external ear.

In a modern world with so much background and other distraction, doing 5 things at once, people are also thinking they have hearing issues but may not have a physical hearing issue and when focused in hearing tests can actually hear to a suitable level. Changing the way your brain hears / process may help rather than focused amplification through buds of any sort.