– How does a single 3.5 mm jack provide stereo sound?

Question

So on my way back home I was listening to music on my bike and I got fascinated by a sound panning from left to right in my earphones. (I was listening Ready or Not by the Fugees). How does a single contact like a 3.5 mm jack provide a stereo sounding effect? How is it able to split the sound between both earphones?

In: Technology

Answer 1

There is a separation on the plug end (little black liners that separate the metal segments) these separate segments connect to wires that feed each individual earphone and allows multiple channels from a single plug.