These domes are suitable for the Phonak speaker 4.0. This speaker is used with the Unitron D Moxi series.
How do you replace a dome of a Unitron or Phonak hearing aid? Hold the thin tube between your thumb and index finger with one hand. With your other hand you pull the dome off. Then you take a new dome and press it on the thintube. Don’t forget to push the whole thing down with your thumb.
RIC, Open aanpassing (thintube)
cap, open large ø 10mm, open medium ø 8mm, open small ø 6mm, power dome large, power dome medium, power dome small, vented large ø 10mm, vented medium ø 8mm, vented small ø 6mm