Analyse signal from Earphones with microphone

Good Morning everyone

I'm trying to use the microphone from a pair of headphones, together with the headphones themselves. However, i have not found a jack connector that will allow me to send the sound signal to the earphone and to get the signal from the microphone at the same time.

Any suggestions?

Thank you, Marco

Any suggestions?

post a picture of a link of the headphone? provide as much relevant info as you can?

headsets are designed with this connection. |500x489

or this type with two plugs

BillHo:
headsets are designed with this connection.

or this type with two plugs

Thank you very much for your answer. This would be very helpful. I have two more questions:

1- Do you know where i can buy a kind of female jack module with the 4 connection pins? I bought this one on ebay
http://www.ebay.it/itm/262064124117?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
but i discover only later that the 5 pins of the module were just for L/R channels, and don’t consider the microphone pin.

2- May I use the M pin directly in arduino or the microphone signal require some amplification/pre-rendering?

Thank you in advance,
Marco

ciabo89: 2- May I use the M pin directly in arduino or the microphone signal require some amplification/pre-rendering?

You need a circuit to power and amplify the microphone.

You may try this

|500x500 http://www.ebay.com/itm/10Pcs-5Pin-Stereo-Headphone-3-5mm-Audio-Jack-Earphone-Socket-/331743931808?hash=item4d3d7aada0:g:1m8AAOSwFqJWhIAq

http://www.ebay.com/itm/NEW-TRRS-3-5mm-Jack-Breakout-Headphone-Video-Audio-MP3-Jack-Professional-WC-/221952589674?hash=item33ad67bf6a:g:HwQAAOSwp5JWWCpc