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Old 12th August 2012, 06:39 PM   #1
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Default What is this gadget? It's made by Sennheiser

The attached photos, have a look and can somebody tell me what this is and/or what it's for? The end of the main body accepts a 2.5mm stereo plug, one that must have a small diameter plastic molding over the soldered connections because it's a small opening there. The main body has a rotary volume control and an off/on slide switch. The end opposite the 2.5mm female jack has two wires, each terminated with a 3.5mm male stereo plug. One of these plugs has a mic icon embossed on it and the other has a headphone icon. I found this thing at a local Goodwill store and paid 99 cents for the thing so I could bring it home and figure out what the heck it's for. Thanks in advance.
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Old 12th August 2012, 08:01 PM   #2
DUG is offline DUG  Canada
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It could be an adapter from a 3 or 4 connection earpiece/microphone headset (or earbud) used for cel phones to regular computer speaker / microphone set

99 cents...autopsy
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Old 12th August 2012, 08:41 PM   #3
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Quote:
Originally Posted by DUG View Post
It could be an adapter from a 3 or 4 connection earpiece/microphone headset (or earbud) used for cel phones to regular computer speaker / microphone set

99 cents...autopsy
Autopsy has been performed. The 2.5mm jack has only 3 connections, ground, right and left. Or put more technically sleeve, 1 ring and tip. You may be right about it being used to connect a cell phone to computer. But would that be of any use? And why the on/off switch or the volume control? Why the stereo plugs, why not mono? Thanks for your reply.

Last edited by SharpyWarpy; 12th August 2012 at 08:43 PM. Reason: additional info
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Old 13th August 2012, 03:13 AM   #4
DUG is offline DUG  Canada
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I had an older cel phone that only had one ear bud and mic...

Do you want it?

Where did the mike output connect to? might be straight through to one of the inputs or through the switch.
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Old 13th August 2012, 04:29 AM   #5
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It is a mic for a pc. Connect your headphone to the socket provided.
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Old 13th August 2012, 10:33 AM   #6
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Quote:
Originally Posted by DUG View Post
I had an older cel phone that only had one ear bud and mic...

Do you want it?
No, thank you. I have one of those that I rarely use any more. But thank you.
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Old 13th August 2012, 10:34 AM   #7
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Quote:
Originally Posted by gmphadte View Post
It is a mic for a pc. Connect your headphone to the socket provided.
I had it apart and did not see a mic.
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Old 13th August 2012, 11:49 AM   #8
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Looks like an inline volume control with an on/off switch for the mic. Probably also converts seperate sound and mic jacks to a single 4-pin output for a headset.

The potentiometer in these things are usually around 500R.
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Old 13th August 2012, 12:31 PM   #9
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Originally Posted by theAnonymous1 View Post
Looks like an inline volume control with an on/off switch for the mic. Probably also converts seperate sound and mic jacks to a single 4-pin output for a headset.

The potentiometer in these things are usually around 500R.
When I had it apart I saw only three soldered connections on the jack so a four pin headset would not be of any use.
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Old 13th August 2012, 12:58 PM   #10
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The mic is in the device, it enables "regular" headphones to be used on a PC for two way communication.
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