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Speaker mic - Listen only port

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ttiiggy

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We got some new Kenwood speaker mics. I haven't got a model number right now.
They have a port on the bottom for an earpiece. It looks like it is a 3.5 mm opening.
Is the jack wired like a mono plug or like a stereo plug? Will either one work? Does it matter?
Some single-ear speakers have 2 conductors and some have 3 conductors.
For what reason would a listen only device have 3 conductors?
 

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code3cowboy

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You should be able to use either one just fine.

Many of the cheap surveillance headsets are a slight modification on a listen only device. It is cheaper to buy one batch of material and make both types of headsets with as many as the same parts as possible.

It is set up for monaural as covering both ears is pointless.
 

gewecke

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We got some new Kenwood speaker mics. I haven't got a model number right now.
They have a port on the bottom for an earpiece. It looks like it is a 3.5 mm opening.
Is the jack wired like a mono plug or like a stereo plug? Will either one work? Does it matter?
Some single-ear speakers have 2 conductors and some have 3 conductors.
For what reason would a listen only device have 3 conductors?


Check with this site. I have two ear-mics from this company and they're excellent quality! :)
Welcome to Kawa-Mall - KawaMall.com
 

ttiiggy

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I finally remembered to get the number off of the mic. The sticker says KMC-41.

All that I found directly from Kenwood is a bare mention of the MilSpec KMC-41M. Kenwood - KMC-41M
Other places have listed a mic as KMC-41 without the 'M'. It doesn't really matter much to me.

One of the guys said that he thought this mic would handle a mic/speaker combo headset. I think he was thinking of the other mics that we were using that were Savox C-C500, I think, Savox Group - Products - Products designed to enhance professional performance and had the larger connector plug on them that would handle the headsets that they had.

I have seen description that says the KMC-41 mic comes standard with a 3.5mm earpiece jack for external earpiece. I assume that means listen only. ??
Anybody know for sure?


A handheld speaker mic too often gets too far from the ear to get all the messages that might be critical. Attached to a lapel or eppulet on a shoulder is closer.
I don't want an ear bud that is always falling out.
I don't want an IN-ear speaker tube that blocks off other sound from getting to that ear.
I don't want a speaker attached to a helmet, a helmet is not always on.
I wouldn't mind a throat mic if it works well and reliably and consistantly. There is still the listen part that I have only found a D-shaped ear hanger seems to satisfy.
I wouldn't mind an ear mic if it will work well and reliably and consistantly, but I think they have to fit too tight in the ear to get the mic part to work that it blocks hearing in that ear.

I think I am wanting a D-shaped ear hanger speaker. I can remember to put the microphone up when I need to talk.
 

ramal121

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Kmc-41

Per the schematic, the jack is listen only and is wired as mono.

I looked at Pryme and they have an earbud looking thing with an ear hook to keep it from falling out.
 

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