A connector that transmits signal through its tip and provides ground/shield through its sleeve. A guitar cable uses this type of connector. Comes as unbalanced tip-ring (TS) or balanced tip-ring-sleeve (TRS) configuration. The TRS has multiple uses—it can transmit stereo signal (T = left, R = right, S = shield/ground), balanced signal (+ and– tied to the T and R, with S as the shield), or it can be used as an insert cable (T = send, R = return, S = ground/shield). The 1/4” connector is sometimes called Phone connector or Phone plug (not to be confused with Phono/RCA).