This is probably the type of audio plug
that people in general will come into contact with most frequently-- you've almost certainly got at least one device somewhere in your house that uses one of these. It's the "small" kind, the kind that you see on almost all headphones
, the kind you plug in to all walkmen
, and the kind you plug in to almost all computer
s for audio-out
and (usually) audio-in
You sometimes see this plug type going by the name "1/8-inch stereo miniplug" or sometimes even "1/8-inch mini-stereo plug". Outside of the U.S. you would probably see "3.5 mm" in the name in place of "1/8 inch".