10 Phonak retention locks for Marvel & Paradise receiver wires to keep your hearing aids securely in place. These are ideal for those who are physically active or simply want a securer fit.
Available in Standard, Medium & Power:
How to use:
1: Gently remove the dome from the end of the receiver
2: Slide the retention lock onto the end of the receiver
3: Push it on until you hear a click
4: Place the dome back onto the receiver
How to identify your retention size:
On the side of your receiver wire you should either see a print, or embossed letters. These will indicate your size.
Standard = S
Medium = M
Power = P
