🎙️ 3.5mm • 3.5mm TRRS Adapter

This adapter maintains TRRS functionality across 3.5mm jacks—preserving stereo audio, microphone input, and inline controls. It’s used to extend, reroute, or adapt TRRS signals between compatible devices and accessories.
 
🔌 Adapter Varieties
🔹 3.5mm Male • 3.5mm Female
Form: Standard plug → Standard jack
Use Case: Extend TRRS headset cable or relocate mic input
Examples:
Add length between headset and phone/laptop
Connect lavalier mic to smartphone via extension
Patch TRRS headset into audio splitter or switch
Note: Must preserve TRRS wiring (CTIA preferred)
🔸 3.5mm Female • 3.5mm Female
Form: Dual jack coupler
Use Case: Join two TRRS male cables
Examples:
Combine headset cable with TRRS extension
Link mic-enabled earbuds to inline control module
Patch TRRS mic into breakout adapter
Note: Often used with TRRS-to-TRS converters or splitters
 
🖥️ Compatible Devices
📱 Smartphones, tablets, laptops
🎮 Game controllers (PS4, Xbox One)
🎧 Headsets, earbuds, lavalier mics
📞 Cordless phones, office headsets
🧪 Audio recorders, dev boards, switchers
 
✅ Common Uses
🔌 Extend TRRS headset or mic cable
🎤 Relocate mic input for better placement
🎧 Join TRRS cables for modular setups
🧰 Patch TRRS accessories into splitters or converters
🧪 Prototype TRRS audio paths in embedded builds
 
🧠 Signal Format
TRRS (Tip-Ring-Ring-Sleeve):
Tip = Left audio
Ring 1 = Right audio
Ring 2 = Microphone or control
Sleeve = Ground
Pinout Standards:
CTIA (modern smartphones/tablets)
OMTP (older phones/radios)
Note: Adapter does not convert pinout—must match device
 
⚠️ Things to Watch Out For
🔄 TRRS ≠ TRS — adapter only works with 4-conductor plugs
🧬 Pinout mismatch — CTIA vs OMTP can affect mic/control
📏 Physical fit — some jacks are recessed or tight
🔊 No signal conversion — purely mechanical adapter
🎛️ Mic polarity — may cause hum or silence if mismatched
 
🛠️ Quick Tips for Beginners
🔍 Count the black bands: 3 = TRRS
🧠 Use CTIA-compatible adapters for most modern devices
⚡ Don’t force plugs—check fit and orientation
🧰 Keep both gender variants for flexible setups
🎛️ Test mic and audio separately—some adapters only pass stereo