Compact Speaker MicThe SSM-17H is fully compatible with all the handheld transceivers that have a speaker mic connection. The audio power, quality and design of the SSM-17H are improvements as...
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...