M Sensor Retention – Extra Support for Phonak and Unitron Receivers
M Sensor Retention, also known as Sensor Lock, helps keep compatible Phonak and Unitron M Sensor receivers securely positioned in your ear. The flexible support arm provides additional stability if your receiver tends to work loose during everyday activities.
The retention attaches directly to the receiver and rests in the bowl of your outer ear, also called the concha. It acts as a discreet anchor, helping to keep the receiver and dome in position.
Features
- Additional support for compatible Phonak and Unitron M Sensor receivers
- Helps reduce movement and slipping during everyday activities
- Flexible, lightweight and discreet design
- Attaches directly to the receiver
Compatibility
Suitable for compatible Phonak and Unitron M Sensor receivers. Compatibility depends on the receiver type, rather than the hearing aid brand alone.
If you are unsure which retention you need, contact us with your hearing aid model or a clear photo of your receiver.
Package contents
- 10 M Sensor Retention pieces
- Product code: 004-4516-001
Receivers, domes and hearing aids are not included.
Frequently asked questions
Select a question below to see the answer.
What does the M Sensor Retention do?
The M Sensor Retention helps keep your receiver and dome securely positioned in your ear. Its flexible arm rests in the bowl of your outer ear, providing additional support and helping to reduce slipping during everyday activities.

