MiniReceiver wax guards are replacement wax guards for the end of Signia / Siemens miniReceivers. MiniReceiver wax guards protect receiver components from wax build-up. Replacing them monthly means you will be confident your aid is working correctly.
These wax guards fit directly onto the receiver (the loudspeaker that sits inside the ear) after removing the dome, sleeve or mould.
(FYI- wax guards that fit directly into the ear moulds are a different size and are called Quick guard.)