Phonak Nano Hearing Aid MicGuard – £11.95 – Free shipping is standard MicGuard for Phonak Nano hearing aids – a microphone cover for Phonak Nano hearing aids only. These microphone guards are designed to prevent dirt, skin flakes and wax entering the microphone inlet. Your hearing aids must already have a microphone housing capable of accepting the MicGuard for you to be able to use this microphone protector. If the microphone port becomes blocked it is a very simple process to change. Comes in a pack of 8 – for a useful video showing how to change a Phonak Nano Mic Guard click here Please note – we only ship to UK postal addresses.