---
product_id: 431995126
title: "MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System"
brand: "millso"
price: "€ 58.35"
currency: EUR
in_stock: false
reviews_count: 5
category: "Mill So"
url: https://www.desertcart.nl/products/431995126-millso-3-5mm-headphone-extension-cable-6-6ft-trs-3
store_origin: NL
region: Netherlands
---

# 6.6ft length for flexible setup 24K gold-plated connectors for lossless audio Quad-layer shielding for crystal-clear sound MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System

**Brand:** millso
**Price:** € 58.35
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Extend your sound, not your worries!

## Quick Answers

- **What is this?** MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System by millso
- **How much does it cost?** € 58.35 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/431995126-millso-3-5mm-headphone-extension-cable-6-6ft-trs-3)

## 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

- • **Durable & Stylish:** Sapphire blue aluminum housing resists wear, corrosion, and withstands 10,000+ plugs
- • **Worry-Free Warranty:** 12-month unconditional warranty with easy 24/7 customer support and optional 18-month extension
- • **Noise-Free Listening:** Quad-layer shielding blocks interference for immersive, distortion-free audio
- • **Seamless Connectivity:** Plug & play design with beveled step-down for easy use even with phone cases
- • **Premium Audio Fidelity:** 24K gold-plated connectors and oxygen-free copper wiring deliver pure, high-res sound

## Overview

The MillSO 3.5mm Headphone Extension Cable (6.6ft) features premium 24K gold-plated connectors, quad-layer shielding, and oxygen-free copper wiring to ensure lossless, high-fidelity audio transmission. Its beveled step-down design allows easy connection even with device cases, while the durable sapphire blue aluminum housing guarantees long-lasting use. Compatible with a wide range of devices, this tangle-free AUX cable comes with a 12-month warranty and responsive customer support, making it the perfect upgrade for audiophiles and professionals alike.

## Description

This MillSO extension AUX cable is ideal for any device with a standard 3.5mm audio jack or AUX-in port. Tablets, PCs, portable speakers, headphones, MP3 players, receivers, Hi-Fi or car stereo systems, auto radio, Walkmans, Discmans, and other devices. Soft PVC jacket, robust full metal plug and socket, and aluminum housing provide a secure hold and ensure maximum stability even with frequent plugging in and out. The high-purity, oxygen-free copper cables guarantee maximum and loss-free transmission of the audio signal. Enjoy a trouble-free, perfect sound experience with your HiFi stereo sound system. Notice: MillSO 3.5mm extension is a stereo cable and fits all 3.5mm aux port, therefore it can transmit the sound (left / right). Headphone functions such as "Play" and "Stop", "Forward" or "Back" can not support.

Review: Why did you pick this product vs others?: Perfect length and well made
Review: I got this wire for a exstion for a headset that i received. The wire thats plugs in to ps4 controller is the same length as the usb that powers the lights in the headset. It is perfect for what in need. I haven't had the wire long so i can't talk about durability yet. The sound is awesome, no static, no popping noise. I feel its definitely worth the money

## Features

- [Plug and Play] MillSO 3.5mm headphone extension cable (1/8" cable) easily connects two 3.5mm stereo audio devices. Eg: cell phone, tablet, or MP3 player to a Home / Car stereo system, headphones, speaker, Hi-Fi stereo systems, auto radio or computer and features a step-down design that enables easy connectivity while your device remains in its case.
- [Qualified male to female AUX Cord] 3.5mm extension cable with 24K gold-plated connectors ensure high stability, high-speed lossless transmission; metal housing is a wear-resistant, anti-corrosion, and solid protection; tin-plated oxygen-free copper wiring for high fidelity, pure sound quality.
- [Quadr-Layer Shielding] this 3.5 audio extension cable perfectly combined 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 low-profile design that enables easy connectivity while your device remains in its case. Sapphire blue Metal Housing - Unique color design: Wear-resistant; Anti-corrosion; Solid protection; 10000+ plug test; Plug and Play; Smooth and stable.
- Reliable Warranty - MillSO offers a 12-month unconditional Warranty for all our products to guard against any quality trouble or compatibility issue. You can extend it to 18 months by contacting MillSO 24-hour customer support team. We are more than happy to solve any problem for you!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | MillSO |
| Connector Type | Auxiliary |
| Cable Type | AUX |
| Compatible Devices | PC, Tablet |
| Special Feature | Tangle Free |
| Recommended Uses For Product | Connecting various devices with a 3.5mm audio jack or AUX-in port |
| Colour | Blue |
| Connector Gender | Male-to-Female |
| Shape | Round |
| Number of Pins | 3 |
| Net Quantity | 1.0 Count |
| Item Weight | 51 Grams |
| Model Name | MTFU2M |
| Specification Met | CE |
| Indoor/Outdoor Usage | Outdoor |
| Number of Items | 1 |
| Customer Package Type | Protective Packaging |
| Outer Material | Aluminum |
| Manufacturer | MillSO |
| Model | MTFU2M |
| Package Dimensions | 20.7 x 16.79 x 1.09 cm; 51 g |
| Item model number | MTFU2M |
| Special Features | Tangle Free |
| Mounting Hardware | PVC |
| Batteries Required | No |
| Material | Aluminum Copper |
| Item Weight | 51 g |

## Product Details

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

## Images

![MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System - Image 1](https://m.media-amazon.com/images/I/41BL2vYXwaL._SS40_.jpg)
![MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System - Image 2](https://m.media-amazon.com/images/I/41MiI0VxKdL._SS40_.jpg)
![MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System - Image 3](https://m.media-amazon.com/images/I/41cePmd9wbL._SS40_.jpg)
![MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System - Image 4](https://m.media-amazon.com/images/I/41i24WRQ+KL._SS40_.jpg)
![MillSO 3.5mm Headphone Extension Cable (6.6ft) TRS 3.5mm Male to Female Stereo Audio Jack Extension Adapter Auxiliary AUX Cord for Headphones, Earbud, Speaker, Car Stereo, Home HiFi Stereo System - Image 5](https://m.media-amazon.com/images/I/518eI0qBkgL._SS40_.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***. on 10 July 2025*

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

### ⭐⭐⭐⭐⭐ Review
*by M***R on 18 November 2020*

I got this wire for a exstion for a headset that i received. The wire thats plugs in to ps4 controller is the same length as the usb that powers the lights in the headset. It is perfect for what in need. I haven't had the wire long so i can't talk about durability yet. The sound is awesome, no static, no popping noise. I feel its definitely worth the money

### ⭐⭐⭐⭐ Review
*by C***M on 28 June 2019*

I use it taped to my guitar cable for a wired IEM (In Ear Monitor) solution. I chose this length because it is a little bit (1ft) longer than my 15ft guitar cable. The sound is very clear and loud, so the cable must have pretty low resistance. The female jack at first seemed to not want to lock, but you have to press headphone connector in HARD. So it is REALLY locked. Awesome! Not hard to remove, though, which is also a plus. Thank you!

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-03*