http://www.bestmp3playerearbuds.com/black-earphones/
What do the black stripes in headphone pins mean?
Some headphone pins have only one stripe, some have two, my ipod earphones have three? What do they actually mean? Is it related to the quality of output? Thanks.
The black bit is an insulator. If it has one stripe them there will be 2 electrical connections, 2 stripes would give 3 and 3 stripes would give 4. Some jacks have more connections so that the device can be remote controlled by an inline remote.
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