This is a Electret microphone / speaker.

New. Improved quality. Electret capsule replaced by a good quality. 2,5mm and 3,5mm panel sockets included and wiring diagram.

Recommended for MFT40 / 20 kits and any other TRXs. Very useful for QRP field days.

This is a Dynamic microphone for ILERs.

New. Good quality 600ohm dynamic capsule. 3,5mm metalic jack plug (5-6mm cable) and wiring diagram.

Recommended for ILERs kits and similar dynamic input mic TRXs.