---
product_id: 163629853
title: "MillSO 3.5mm Headphone Extension Cable (6.6 Feet) TRRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi System"
brand: "millso"
price: "A$21"
currency: AUD
in_stock: true
reviews_count: 8
category: "Mill So"
url: https://www.desertcart.com.au/products/163629853-millso-3-5mm-headphone-extension-cable-6-6-feet-trrs
store_origin: AU
region: Australia
---

# 6.6ft premium length 24K gold-plated connectors Quad-layer shielding MillSO 3.5mm Headphone Extension Cable (6.6 Feet) TRRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi System

**Brand:** millso
**Price:** A$21
**Availability:** ✅ In Stock

## Summary

> 🎶 Extend your vibe, not your hassle.

## Quick Answers

- **What is this?** MillSO 3.5mm Headphone Extension Cable (6.6 Feet) TRRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi System by millso
- **How much does it cost?** A$21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/163629853-millso-3-5mm-headphone-extension-cable-6-6-feet-trrs)

## Best For

- millso enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Plug & Play:** Effortlessly extend your audio reach without any setup fuss.
- • **Durability Meets Style:** Sapphire blue metal housing with tangle-free, flexible cable built to last.
- • **Perfect Fit Every Time:** Beveled step-down design ensures compatibility even with bulky phone cases.
- • **Shielded for Pure Sound:** Quad-layer shielding blocks interference for crystal-clear audio in any environment.
- • **Audiophile-Grade Clarity:** 24K gold-plated connectors + oxygen-free copper wiring deliver pristine, lossless sound.

## Overview

The MillSO 3.5mm Headphone Extension Cable offers a 6.6-foot premium length with 24K gold-plated connectors and quad-layer shielding for superior sound fidelity. Its sapphire blue metal housing and beveled step-down design ensure durability and compatibility with devices even in cases. Ideal for headphones, speakers, car stereos, and HiFi systems, this tangle-free AUX cable guarantees stable, lossless audio transmission with plug-and-play convenience.

## Description

Buy MillSO 3.5mm Headphone Extension Cable (6.6 Feet) TRRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi System: Extension Cords - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Very well made with a thoughtful design. Looks good, too. - I used the 4ft /1.2m extension to connect a laptop and a PC to headphones/mic and it worked flawlessly. Sound quality was at it should be. The plugs cleanly snapped into place. The finger holds machined into the metal plugs made them easy to grasp. You can tell that care went into the machining of the plugs. I love the great flexibility of the cable and the protection that the braided covering will give it. The way the male plug necks down before the contacts begin is the difference between fitting or not fitting in many cases, including mine! In closing, you are getting what you pay for: a high performing well designed cable that you should enjoy a long time of use from.
Review: Great build quality nice sound unfortunately did not work with Apple earbuds - The cable is made nicely and the sheathing is really durable. Unfortunately this extension cable does not allow the use of the internal mic and I love the Apple earbuds nor the volume up or volume down buttons. But on the other hand the build quality is excellent as well as the metal barrels. Even though this does not work with trans manning the microphone or volume controls of the Apple earbuds I am going to keep this as it will be nice to add to my collection for more standard headphones. Unfortunately in my case it did not work for what was needed but like I said on the other hand great cable so I’m gonna keep it

## Features

- Plug and Play: MillSO 3.5mm headphone extension cable (1/8" cable) easily connects two 3.5mm stereo audio devices. Eg: smartphone, tablet, or MP3 player to a Home / Car stereo system, headphones, speaker, Hi-Fi stereo systems, auto radio or computer.
- Qualified 3.5mm Male to Female Aux Cord: 3.5mm extension cable with 24K gold-plated connectors ensures high stability, and high-speed lossless transmission, tin-plated oxygen-free copper wiring for high fidelity, pure sound quality.
- Quadr-Layer Shielding: MillSO 3.5 audio extension cable perfectly combines tinned coppers, aluminum foil, soft and durable PVC covers, it's high-density shielding protection and effective isolation, offer a full and delicate tone, highly restored quality sound.
- Beveled Step-down Design: MillSO headphone cable extension cable features a step-down design that enables easy connectivity while your device remains in its case. Plug and Play, it can withstand 10000+ plug tests, smooth and stable.
- Unique Color Design: MillSO 3.5mm aux extension cable is designed with sapphire blue metal housing, wear-resistant, anti-corrosion, and solid protection.
- What You Will Get: MillSO offers 24*7 customer service and technical support for our 3.5mm audio extension cable, to ensure your pleasing shopping experience. If you encounter any quality trouble or compatibility issues, please let us know.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W7JQ673 |
| Best Sellers Rank | #65,996 in Electronics ( See Top 100 in Electronics ) #536 in Speaker Cables |
| Brand | MillSO |
| Brand Name | MillSO |
| Cable Type | AUX |
| Color | Sapphire Blue |
| Compatible Devices | Headphone |
| Connectivity Technology | Auxiliary |
| Connector Gender | Male-to-Female |
| Connector Type | Auxiliary |
| Customer Package Type | Protective Packaging |
| Customer Reviews | 4.6 out of 5 stars 552 Reviews |
| Included Components | PVC |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Shape | Round |
| Item Weight | 51 Grams |
| Manufacturer | MillSO |
| Model | MTFU2M |
| Model Name | MTF200 |
| Number of Items | 1 |
| Number of Pins | 3 |
| Other Special Features of the Product | Tangle Free |
| Recommended Uses For Product | Connecting various devices with a 3.5mm audio jack or AUX-in port |
| Special Feature | Tangle Free |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** MillSO
- **Connector Type:** Auxiliary
- **Cable Type:** AUX
- **Compatible Devices:** Headphone
- **Special Feature:** Tangle Free

## Images

![MillSO 3.5mm Headphone Extension Cable (6.6 Feet) TRRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi System - Image 1](https://m.media-amazon.com/images/I/6198VgwyrUL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very well made with a thoughtful design. Looks good, too.
*by M***K on September 21, 2020*

I used the 4ft /1.2m extension to connect a laptop and a PC to headphones/mic and it worked flawlessly. Sound quality was at it should be. The plugs cleanly snapped into place. The finger holds machined into the metal plugs made them easy to grasp. You can tell that care went into the machining of the plugs. I love the great flexibility of the cable and the protection that the braided covering will give it. The way the male plug necks down before the contacts begin is the difference between fitting or not fitting in many cases, including mine! In closing, you are getting what you pay for: a high performing well designed cable that you should enjoy a long time of use from.

### ⭐⭐⭐⭐⭐ Great build quality nice sound unfortunately did not work with Apple earbuds
*by H***Y on February 2, 2021*

The cable is made nicely and the sheathing is really durable. Unfortunately this extension cable does not allow the use of the internal mic and I love the Apple earbuds nor the volume up or volume down buttons. But on the other hand the build quality is excellent as well as the metal barrels. Even though this does not work with trans manning the microphone or volume controls of the Apple earbuds I am going to keep this as it will be nice to add to my collection for more standard headphones. Unfortunately in my case it did not work for what was needed but like I said on the other hand great cable so I’m gonna keep it

### ⭐⭐⭐⭐⭐ Very well made
*by C***. on July 10, 2025*

Why did you pick this product vs others?: Perfect length and well made

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-13*