(1) For telephone connections, see
RJ-11.
(2) Also called a "quarter-inch" or "6.3mm" plug and socket, the phone connector is widely used to connect microphones, headphones and musical instruments to audio equipment. Phone connectors and their mini-phone counterparts are commonly called "audio jacks." See
mini-phone connector,
RCA connector,
A/V ports and
plugs and sockets.
Phone Connectors
Stereo plugs are identified by the three divisions in their prong; monaural plugs have only two. Plugs are also identified by TS, TRS and TRRS designations (see
tip and ring).