Inter-M RM-911D - Manual (Page 18)

RM-911D/W(REMOTE MICROPHONE)
(RM-911D/W), then the broadcasting is stopped and
the LED of the button is off.
If the password is inputted not correctly, then wait
until the LED is off and input the password correctly.
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MODE SETTING SWITCh (RM-911D only)
← Default :
← ON Position
SW1 : Set to On position.
4-Tone chime is output when Talk button is
pressed.
SW2 : Set to On position.
4-Tone chime is output when Talk button is
turned to Off.
SW3 : Set to OFF position.
Voice broadcasting can be done using the MIC
during the Talk button is pressed.
Set the SW3 to ON position.
When the Talk button is once pressed, then
voice broadcasting can be done.
Press the button once again to stop the Talk
mode.