Phone plug is a general term for audio connectors that accept a rod-shaped plug. They come in several diameters, including standard 1/4-inch, mini and sub-mini.
The basic idea
The wiring also differs by purpose, with TS, TRS and TRRS variants used for guitars, headphones, line-level gear and so on.
What to check when using one
Choose a cable by checking mono versus stereo, balanced versus unbalanced and the intended use, not just the visible thickness.
It differs from the XLR connector in shape and locking mechanism, and the two are used for different purposes.
