At the risk of getting too deep into the weeds, I have been influenced by a document filed with the FCC for the Marvel series. I have not seen similar for the Paradise. I added the highlighting.
So Phonak has a history of selling physically identical aids at different price points. I wouldn’t be surprised if they took the same approach to the Paradise (90,70,50,30) and to the KS10s. But I do not know this to be the case.