3.5mm audio. TRS vs TRRS

Connector types

• TRS. Three segments. Tip, Ring, Sleeve. Stereo audio only.
• TRRS. Four segments. Adds microphone channel. Used by headsets.
• TS. Two segments. Mono. Used by instruments and older gear.

Compatibility

• TRS plug in TRRS jack. Audio works. Mic does not.
• TRRS plug in TRS jack. Audio works. Mic ignored.
• CTIA vs OMTP. Two TRRS wiring standards. Most modern devices use CTIA.

Common fixes

• One ear silent. Check cable near plug for damage.
• Mic not detected. May need TRRS splitter to separate mic and audio.
• Static noise. Clean the jack with compressed air.

Recommended gear

TRRS to TRS splitterShop on Amazon → 3.5mm extension cableShop on Amazon → USB-C to 3.5mm adapterShop on Amazon →