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How to know the number/type of pin in headphone jack?

post #1 of 3
Thread Starter 

I'm new and certain that is what they call,

I just discover that all this year I just lucky by buying an ear phone that compatible with my smartphone, a device that I used to listen to music to, it only support 3 pin stereo plug only as pictured on this link:


http://connector.pinouts.ru/connectors/teleph35sm.gif

 

To my frustration that yesterday when I in store to buy new headphone some of them are not compatible with my phone as they have 4 pin stereo plug,

Certain product also hide their headphone jack in the packaging so that I can't see what type their pin stereo plug is and there is no way the shop let me open the box first without buying it,

 

Is there a certain way to know the number of pin on headphone jack? all that written is on all box is 3.5mm jack

post #2 of 3

two types...

 

1/8 TRS jack is the standard audio jack for music players.  TRS stands for tip/ring/sleeve, 1/8" is the diameter.

 

1/8 TRRS jack is the standard for smart phones.  It adds an extra ring conductor for the mic/volume features.  1/8" is the diameter.

 

A TRS headphone (with no mic / volume features) will still work in a TRRS smartphone, you just lose the mic and volume features.  A lot of smart phone manufacturers state their phones are not compatible with TRS headphones, thats not entirely true.  You can still listen with TRS.

 


Edited by kramer5150 - 3/29/14 at 10:18am
post #3 of 3
Thread Starter 
Quote:
Originally Posted by kramer5150 View Post
 

two types...

 

1/8 TRS jack is the standard audio jack for music players.  TRS stands for tip/ring/sleeve, 1/8" is the diameter.

 

1/8 TRRS jack is the standard for smart phones.  It adds an extra ring conductor for the mic/volume features.  1/8" is the diameter.

 

A TRS headphone (with no mic / volume features) will still work in a TRRS smartphone, you just lose the mic and volume features.  A lot of smart phone manufacturers state their phones are not compatible with TRS headphones, thats not entirely true.  You can still listen with TRS.

 

Thanks, it help a bit, maybe I should change smartphone because it's old

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