Miracle-Ear GENIUS 2.0 User Manual page 8

You can use standard or custom-made ear pieces.
Your Hearing Care Specialist will indicate your model.
Standard ear pieces
You can easily exchange the standard ear pieces. Read
more in section "Maintenance and care."
Custom-made ear pieces
6 Your hearing aids
Click Dome
™
(open or closed)
Click Dome semi-open
Click Dome double
Custom shell
Click Mold
single
™
Size