I have a pair of Phonak M90-R hearing aids. Great product. Works really well.
However, I’d like to make and enquiry about the receiver wires. I notice that there are three types of receiver wires 4.0 / 5.0 / 6.0. It is not clear what the difference is between them. I checked compatibility and it seems that all of them are compatible with my M90-R - so which one should I order if I need one?
You’re ignoring this member’s posts.