---
product_id: 21997424
title: "FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack)"
brand: "fospower"
price: "₩19978"
currency: KRW
in_stock: true
reviews_count: 13
url: https://www.desertcart.kr/products/21997424-fospower-3-5mm-male-to-female-auxiliary-stereo-audio-headphone
store_origin: KR
region: South Korea
---

# 4-Conductor TRRS for full audio + mic Ultra-slim design fits thick cases 24k gold-plated corrosion-resistant connectors FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack)

**Brand:** fospower
**Price:** ₩19978
**Availability:** ✅ In Stock

## Summary

> 🎧 Upgrade your audio game—never miss a beat or a call!

## Quick Answers

- **What is this?** FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) by fospower
- **How much does it cost?** ₩19978 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/21997424-fospower-3-5mm-male-to-female-auxiliary-stereo-audio-headphone)

## Best For

- fospower enthusiasts

## Why This Product

- Trusted fospower brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Slim & Sleek Design:** Ultra-thin adapter slips easily through thick phone cases
- • **Durable Premium Build:** 24k gold-plated connectors ensure long-lasting corrosion resistance
- • **Universal Compatibility:** Works flawlessly with iPhones, Androids, tablets, and more
- • **Seamless Audio Extension:** Extend your headphone reach without losing quality
- • **Crystal Clear Sound & Mic:** 4-conductor TRRS supports stereo audio plus microphone

## Overview

The FosPower 3.5mm Male to Female AUX Adapter is a premium 4-conductor TRRS cable extender designed for seamless audio and microphone connectivity. Its ultra-slim profile fits through thick device cases, while 24k gold-plated connectors ensure corrosion resistance and superior sound quality. Compatible with a wide range of devices including smartphones, tablets, speakers, and card readers, it supports volume control, call functions, and voice commands for a versatile, professional-grade audio experience.

## Description

Full description not available

## Features

- [MALE TO FEMALE] Connectors: TRRS mini-stereo (3.5mm) male to TRRS mini-stereo (3.5mm) female cable.
- [LISTEN FROM A DISTANCE] Audio headphone jack extender adapter.
- [SLIM DESIGN] Ultra-slim audio jack adapter extends the reach of any 3.5mm (1/8") cable/plug through THICK mobile device cases.
- [COMPATIBILITY] Works with any device with a 3.5mm (1/8") headphone jack, including headsets with a microphone, credit card readers (such as Square/PayPal), and car/office/home audio systems. Volume control/play/pause/call/hang-up features are compatible, and voice commands such as "Siri" and "Ok Google" also work.
- [PREMIUM BUILT CABLES] 24k gold plated connectors resist corrosion and reduce tarnish.

## Product Details

- **Compatible Devices:** Cellular Phones, Headphone, MP3 Player, Speaker, Tablet
- **Connector Type:** Auxiliary
- **Color:** 05 Pack
- **Brand:** FosPower
- **Finish Type:** Gold

## Images

![FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) - Image 1](https://m.media-amazon.com/images/I/61HgmdS5THL.jpg)
![FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) - Image 2](https://m.media-amazon.com/images/I/51O6kxiwQ4L.jpg)
![FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) - Image 3](https://m.media-amazon.com/images/I/6159ZVkVJ5L.jpg)
![FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) - Image 4](https://m.media-amazon.com/images/I/61bYiezHwVL.jpg)
![FosPower 3.5mm Male to Female Auxiliary Stereo Audio Headphone Jack AUX Adapter, 4-Conductor TRRS for iPhone, Smartphones, Tablets, Speakers, Microphone & Card Readers (5 Pack) - Image 5](https://m.media-amazon.com/images/I/61pkdVqqxJL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Just what I needed and glad I picked these...
  

*by R***D on Reviewed in the United States on March 4, 2016*

Just what I was looking for. I bought this 5 pack because I have numerous devices and cables that have thick cases and large cable connector heads. I'm very happy with this product. I've tried them and they work on everything I have. I've tried the FosPower adapters on my iPods (3 different types), Kindle Fires (3 different ones) and iPhones. All my devices have larger/thick cases on them and the FosPowers fit and work just fine. One reviewer mentioned they won't work on "ANY" Mophie Battery Pack/Case which isn't correct. Another reviewer stated it doesn't work with a iPhone 6S+ which I can't speak too. I have a iPhone 4S and my wife has an iPhone 5S, both have Mophie Power Packs, and the adapters work great. The iPhone 5S with Mophie has a deep recess into the headphone jack but just a little pressure will seat it. The adapters are well made with solid construction and quality materials. I wouldn't recommend having your device in your front or rear pocket with an adapter inserted if you're going to sit down. I could see it potentially breaking since it is a rigid adapter that sticks out about 3/4 - 1 inch after inserted. Nice product and worth every penny...

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This works great
  

*by A***R on Reviewed in the United States on August 25, 2019*

For the past month i have noticed that my fitness instructor has to disassemble her smart phone case to play her music for her class.  Then i used my phone to listen to an audio book and i remembered that i had to research and find a special cord that would fit down inside the hole in my phones protective case just to make the headphones work.  Finally i saw these.  I gave it a shot.  I wish i had bought 10.  THEY WORK.  But now i have to remember to check the cord after her class to make sure that she takes this adapter with her.  If everyone was honest i would just leave this adapter on the cord in the fitness studio, but i am afraid that someone will love it so much they will take it home.  I have an extra one with me in my gym bag if it disappears.  It is small and it may be hard to keep track of,  So just buy the 10 pack!  I just bought another 10 because i never want to be without one.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    TRRS male to TRRS female extension
  

*by R***E on Reviewed in the United States on May 25, 2020*

Just my opinion but this shouldn’t be called a stereo adapter, it’s an extension.If you look deep enough in the pictures it does actually show that but my search term was TRRS male to stereo adapter and this popped up. I’m sure it pops up if you’re looking for an extension also.It’s my fault, I was in a hurry and didn’t read the fine print.I did pass a TRRS  mic through all 5 extensions just to test them for this review and they all worked well. Fit and finish is good also.I have no idea how durable they are Since I didn’t need them. Hopefully some day I’ll have a need for one.It would be nice if the seller would make it clearer that it’s an extension.

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**Shop now:** [https://www.desertcart.kr/products/21997424-fospower-3-5mm-male-to-female-auxiliary-stereo-audio-headphone](https://www.desertcart.kr/products/21997424-fospower-3-5mm-male-to-female-auxiliary-stereo-audio-headphone)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-27*