Correction, my current Kirkland hearing aids seem to be 8 years old. Hoping the new technology and AI of new Phillips 9040’s will help. With the 180 day trial period I have nothing to lose.
As far as reliability of the technologist at costco, I find that in the store I go to anyway, they are equal to and in most cases far superior to testing and fitting than the previous big $ private hearing aid centers or professional I had been using before at more than double the cost.
Click domes are the small clear vinyl like covers at the end of the reviver that go into your ears, they actually click in place so they don’t fall off in your ear easily. Had that happen with older heating aids, not fun.