# item.guide
Side-by-Side Comparison Jack Connectors

3.5 mm TRRS vs. 3.5 mm TRS

Comparing 2 standards across 9 specifications. 7 key differences identified.

Comparing:
3.5 mm TRRS
3.5 mm TRS

3.5mm TRRS connectors transmit stereo audio plus a microphone signal over four conductors. CTIA wiring places ground on Ring 2 and mic on the sleeve; OMTP swaps ground to the sleeve and mic to Ring 2, causing muted or distorted audio when the two are mixed.

View full 3.5 mm TRRS spec sheet →

3.5mm TRS is the 3-conductor version of the 3.5mm mini-jack. It's wired either as unbalanced stereo audio (tip: left, ring: right, sleeve: ground) in consumer headphones, or as balanced mono (tip: hot, ring: cold, sleeve: ground) in some professional audio gear -- the same three contacts, different signals depending on the device.

View full 3.5 mm TRS spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
Connector Family
Phone Jack (Mini-Jack) Phone Jack (Mini-Jack)
Shaft / Plug Diameter
3.5 mm (1/8") 3.5 mm (1/8")
Conductors / Contacts
4 (Tip, Ring 1, Ring 2, Sleeve) 3 (Tip, Ring, Sleeve)
Signal Format
Stereo Audio + Microphone / Inline Remote Unbalanced Stereo / Balanced Mono
Primary Applications
Smartphone headsets, gaming headsets, laptops with combo audio/mic jack Standard headphones, PC audio line-out, auxiliary inputs, portable media players
CTIA Standard Pinout
Tip: Left | Ring 1: Right | Ring 2: Ground | Sleeve: Mic (Apple, Android)
OMTP Standard Pinout
Tip: Left | Ring 1: Right | Ring 2: Mic | Sleeve: Ground (Legacy EU)
Standard Stereo Pinout
Tip: Left | Ring: Right | Sleeve: Ground
Balanced Mono Pinout
Tip: Hot (+) | Ring: Cold (-) | Sleeve: Ground