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Avencore 4-Pole TRRS 3.5mm (Female) to 2.5mm (Male) Adapter

Avencore 4-Pole TRRS 3.5mm (Female) to 2.5mm (Male) Adapter (Photo )
Avencore 4-Pole TRRS 3.5mm (Female) to 2.5mm (Male) Adapter (Photo )
Avencore 4-Pole TRRS 3.5mm (Female) to 2.5mm (Male) Adapter (Thumbnail )
Avencore 4-Pole TRRS 3.5mm (Female) to 2.5mm (Male) Adapter (Thumbnail )

Converts between 3.5mm Female 4-Pole Socket and 2.5mm Male 4-Pole Jack

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  • Description
  • Product Specs
  • Product Reviews
  • Related Blogs
  • FAQs

Converts between 3.5mm Female 4-Pole Socket and 2.5mm Male 4-Pole Jack

Need a 4-Pole (TRRS) audio jack adapter for total compatibility between your phone and headset? This premium compact adapter from Avencore has total compatibility with all stereo headphones and speakers, plus microphone headsets which use the extra channel.

Each channel is maintained and transferred perfectly with this all-metal adapter. The only plastic parts are the spacers! Expect robust build quality and peerless performance thanks to gold plated terminals. Use it with any TRRS audio equipment you need to change between 3.5mm and 2.5mm - it'll work on practically anything thanks to the 4-pole connectors!

No additional parts required for use with regular stereo headphones or speaker outputs.

Note: Not compatible with mono headsets for wired telephone systems expecting TRS input.

Feature set:

  • 3 Year Avencore Warranty
  • Gold Plated Connectors (Female 3.5mm Mini Jack to Male 2.5mm Mini Jack)
  • Slimline metal barrel
  • iPhone Headset with Microphone Compatible (Also Skype/Zoom and other phone headsets)
  • All four terminals are wired straight-through
  • Designed for use with stereo headsets. Not compatible with mono headsets using TRS plugs.
  • For CTIA/OMTP adapting, please check our TRRS Standards adapter
  • Colour: Black (with Gold connectors)
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Product Summary & Specifications
Product Code:
Connector A:
3.5mm TRRS 4-Pole Socket (Female)
Connector B:
2.5mm TRRS 4-Pole Jack (Male)
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Understanding TRRS and Audio Jacks
Understanding TRRS and Audio Jacks
Written on 13th Feb, 2014 by Cable Chick
Learn about the varieties of audio jack and how to identify them, plus discover why one TRRS cable won't work for all your AV needs.   [Read More]
Blog Category: Technology Guides    
Posted: 7th April, 2015
Question: How slim is this adapter in mm? It need to fit through the often narrow openings on cases?
Answer: "This adapter is 6.4mm in diameter and the main body is 22.5mm long (not including the male pin)"
Posted: 22nd July, 2015
Question: I don't understand the 2.5mm element of this??.... my headphones are 3.5mm and they normally plug into my iPhone no problem.... why would you say the male element of this plug is 2.5mm and fits an iPhone?
Answer: "This adapter can work with an iPhone compatible headset or hands-free kit for us on phone systems using a 2.5mm socket. The adapter itself does not plug into the iPhone."

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