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Standard Horizon Earpiece/Microphone f/HX270, HX370, HX471 & HX400
Standard Horizon Earpiece/MicrophoneFeatures:
- Includes an additional earpiece foam cover
- 1-Set the volume level of the transceiver to minimum
- Turn the transceiver OFF and then insert the SSM-55A connector into the transceiver Earpiece/Microphone jack
- Press the PTT button and speak into the microphone