Hi,i am on the forum for my wife who is not IT literate but is learning, we hope you dont mind me acting on her behalf ,she had a hearing test yesterday her hearing is quite impaired and she has suffered for some time with tinatus,the tester told her because she has very small ear canals she would have to use a Seimens TM Mod N/R push button FB Low,for both ears which were very expensive,any advise would be extremely welcome we are both retired so we need to get the best deal while still achieving the level of quality required.