---
product_id: 143750033
title: "MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm"
brand: "millso"
price: "€ 15.50"
currency: EUR
in_stock: true
reviews_count: 13
category: "Mill So"
url: https://www.desertcart.pt/products/143750033-millso-1-4-to-3-5mm-headphone-adapter-trs-6
store_origin: PT
region: Portugal
---

# 6.35mm female to 3.5mm male TRS adapter Durable sapphire blue metal housing 24K gold-plated connectors for lossless audio MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm

**Brand:** millso
**Price:** € 15.50
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game — connect like a pro, hear like a legend!

## Quick Answers

- **What is this?** MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm by millso
- **How much does it cost?** € 15.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/143750033-millso-1-4-to-3-5mm-headphone-adapter-trs-6)

## 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

- • **Rock-Solid Durability:** Sapphire blue metal housing resists wear and corrosion, built to last through every jam session.
- • **Seamless Audio Bridge:** Effortlessly connect professional gear to everyday devices with plug-and-play simplicity.
- • **Peace of Mind Warranty:** 18-month extended warranty plus lifetime tech support keeps your setup worry-free.
- • **Shielded for Pure Sound:** Quad-layer shielding eliminates interference, preserving crystal-clear audio fidelity.
- • **Audiophile-Grade Clarity:** 24K gold-plated connectors and oxygen-free copper wiring deliver pristine, lossless sound.

## Overview

The MillSO 1/4 to 3.5mm Headphone Adapter is a premium 12-inch cable that converts 6.35mm female TRS ports to 3.5mm male stereo plugs, enabling seamless audio transfer between professional instruments and consumer devices. Featuring 24K gold-plated connectors, oxygen-free copper wiring, and a durable sapphire blue metal housing, it ensures lossless, interference-free sound quality. Ideal for amplifiers, guitars, pianos, and home theater systems, it comes with an 18-month extended warranty and lifetime technical support.

## Description

Buy MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm: Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Quality - Exactly as described. Good working products. Good shipping
Review: Well built, nice connections, significant improvement in headphone sound -- no kidding - I listen to music and watch movies with Sennheiser 599 SE headphones. I've been connecting those using a coiled cable I bought over 10 years ago. Noticed recently that the sound seemed to jump in/out in one of the ears and decided it was time to try a new cable, so I ordered this MillSO cable. The cable arrived nicely packaged, and the materials had a high-quality feel on unpacking. Cable was supple, and connectors looked very nice. When I connected the headphones, the connector had a very nice, snug grip and the male end of the cable had a nice snug fit into my A/V box. Then I turned on the sound...wow! I was amazed at how much better my headphones sounded with this new cable. Being sure that I was probably just imagining, I switched back to the old cable, then back to the new cable. No question, sound was significantly better with the new cable. I know part of that was how bad the old cable was, but some of it has to be because of how good the new cable is. The manufacturer (MillSO) followed up with an email to make sure I got everything ok, and offered an 18-month extended warranty at no additional cost. I'm very pleased with this cable, highly recommend it. Just wish I had gotten it sooner!

## Features

- MillSO 1/4 to 3.5mm Adapter (6.35mm female to 3.5mm male) can transfer audio between 3.5mm devices(smartphones, laptops, or headphones) and 6.35mm devices(amplifier, guitar, piano, mixing console, home stereo system...). Eg: 6.35mm headphone to computer adapter, amplifier to headphones/3.5mm speaker adapter, piano to 3.5mm adapter, guitar to speaker adapter, etc. [NOTICE: Please rotate plugs gently, make sure they have been put into the jack absolutely.]
- Plug and Play: 1/4 to 1/8 adapter allows you to easily and quickly connect devices with a 6.35mm port to those with a 3.5mm port. It's tight connection and flexible design ensure a reliable audio transfer with no loss of quality. Perfect for transferring audio between devices with stereo TRS jacks, this 3.5mm to 1/4 adapter offers a perfect solution for your audio needs without the need for any additional accessories. [NOTICE: Only transfer audio between devices, NO mic function.]
- Superior 6.35mm to 3.5mm Adapter: Designed with 24K gold-plated connectors for maximum stability and high-speed, lossless transmission. Its unique Sapphire Blue metal housing ensures wear resistance and anti-corrosion, and tin-plated oxygen-free copper wiring ensures pure sound quality. Get the ultimate protection and sound quality with our 1/8 to 1/4 adapter!
- Crystal-Clear Sound Quality: This 1/4 inch to 3.5mm adapter combines Quadr-Layer Shielding, tinned coppers, aluminum foil, soft and durable PVC covers to provide high-density shielding protection and effective isolation. Let you enjoy a full and delicate tone with highly restored quality sound!
- Reliable Warranty: MillSO offers 24*7 friendly customer service, 18-month Extend Warranty & Lifetime Technical Support for our headphone adapter 1/4 to 3.5mm, to ensure your pleasing shopping experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SRWZ77L |
| Best Sellers Rank | #16,843 in Electronics ( See Top 100 in Electronics ) #275 in Headphone Adapters |
| Brand | MillSO |
| Color | Blue |
| Compatible Devices | Headphone, speaker, electronic keyboard, Audio mixer, amplifiers, electric guitar amp/piano, stereo system, mixing console Compatible Devices Headphone, speaker, electronic keyboard, Audio mixer, amplifiers, electric guitar amp/piano, stereo system, mixing console See more |
| Connector Type | 1/4" to 3.5mm stereo audio TRS |
| Customer Reviews | 4.6 out of 5 stars 3,056 Reviews |
| Finish | Gold |
| Finish Type | Gold |
| Item Weight | 18.14 g |
| Manufacturer | MillSO |
| Mfr Part Number | YytcM35F635UUs30Cm |
| Model Number | M35-F635-30 |
| Number of Items | 1 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Specific Uses For Product | Amplifier,Speaker |
| Unit Count | 1 Count |
| Warranty Description | MillSO offers a 12-month Unconditional Warranty for all our products to guard against any quality trouble. Please feel free to contact our warm 24-hour customer support team if you need any help. |
| Warranty Type | Extended |

## Product Details

- **Brand:** MillSO
- **Color:** Blue
- **Connector Type:** 1/4" to 3.5mm stereo audio TRS
- **Specific Uses For Product:** Amplifier,Speaker

## Images

![MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm - Image 1](https://m.media-amazon.com/images/I/81AjTZb4j8L.jpg)

## Available Options

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

## Questions & Answers

**Q: Can it take a 1/4 mono signal and split it into L/R channels on the 1/8 plug?**
A: No, you need a purpose built adapter for that.

**Q: Is this cable 12"tip to tip, or is is a 12" cable?**
A: Tip to tip length is 14.25" . I don't know where the 12" measurement comes from, but the cable length itself (minus both connectors length) is 10.5" Hope this helps.

**Q: Does this work for a talkbox?**
A: This is a passive adapter which simply allows an audio cable with a male 1/4in. connector to be plugged into any audio device having a 1/8in. socket.  

There is every reason to believe that it will work with a "Talk Box" if that device needs such an adapter.

**Q: Can this work in either direction, i.e., 3.5mm to ¼" as well as ¼" to 3.5mm?**
A: Dear Amazon Customer,
Yes, this MillSO 1/4 to 3.5mm adapter can work in either direction (3.5mm to ¼" as well as ¼" to 3.5mm).

Thank you for your question. Hope this answer will help you, if you have any other concerns, please contact us via support@millso.com, we will always be more than happy to assist you.

Best regards
MillSO Technical Support Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality
*by W***. on September 26, 2026*

Exactly as described. Good working products. Good shipping

### ⭐⭐⭐⭐⭐ Well built, nice connections, significant improvement in headphone sound -- no kidding
*by G***R on February 13, 2021*

I listen to music and watch movies with Sennheiser 599 SE headphones. I've been connecting those using a coiled cable I bought over 10 years ago. Noticed recently that the sound seemed to jump in/out in one of the ears and decided it was time to try a new cable, so I ordered this MillSO cable. The cable arrived nicely packaged, and the materials had a high-quality feel on unpacking. Cable was supple, and connectors looked very nice. When I connected the headphones, the connector had a very nice, snug grip and the male end of the cable had a nice snug fit into my A/V box. Then I turned on the sound...wow! I was amazed at how much better my headphones sounded with this new cable. Being sure that I was probably just imagining, I switched back to the old cable, then back to the new cable. No question, sound was significantly better with the new cable. I know part of that was how bad the old cable was, but some of it has to be because of how good the new cable is. The manufacturer (MillSO) followed up with an email to make sure I got everything ok, and offered an 18-month extended warranty at no additional cost. I'm very pleased with this cable, highly recommend it. Just wish I had gotten it sooner!

### ⭐⭐⭐⭐⭐ Reliable contact, no intermittent noise
*by V***D on May 11, 2026*

This was my fourth 1/4”- to-1/8” adapter. The first three all had noisy/loose contacts — if I touched the connection, the signal would crackle or cut out. This one is the first that holds a solid connection. It’s $1–$2 more, but after wasting time returning the others, it’s worth it. Recommended.

## Frequently Bought Together

- MillSO 1/4 to 3.5mm Headphone Adapter, TRS 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifiers, Guitar, Piano, Home Theater Devices to Phone, Laptop, Headphones - 12inch/30cm
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-13*