Canal Lock?

@hjcihak said:

‘canal lock.’ What is it?

Canal Lock Earmoulds for Hearing AidsCanal lock earmoulds are suitable for users experiencing poor retention with canal moulds. A spur is added to the canal mould in the anti-tragal area to help anchor the mould in place.

http://www.soniclabs.co.uk/Products_hearing_canal.html#:~:text=Canal%20Lock%20Earmoulds%20for%20Hearing,anchor%20the%20mould%20in%20place61.

Feedback should be adjusted with your Audiologist.

And if canal lock doesn’t work, skeleton mold likely will.