Standard Horizon

Standard SSM-21A Speaker MicrophoneModel: SSM-21AThe SSM-21A is a high performance Submersible speaker microphone desiged especially for their hand held transceivers.

Standard SSM-517A Earpiece MicrophoneModel: SSM-517AThis earpiece microphone replaces the SSM-55A and works with HX890, HX870, HX400, HX407, HX380, HX290, HX210, HX40

Standard SSM-64A Headset Microphone with VOX and PTT Model: SSM-64A UPC: 788026144259 For use with HX370S, HX400, HX851. It will also wort with HX37SAS and HX400IS intrinsicaly safe radios however...

Standard SSM-BT20 Bluetooth HeadsetModel: SSM-BT20The new SSM-BT20 is a Bluetooth 5.0 headset and is designed for all YAESU Bluetooth compatible transceivers.The SSM-BT20 supports 16K audio sampling...