---
product_id: 71186245
title: "MillSO 1/4 Male to 3.5mm Female Headphone Adapter"
brand: "millso"
price: "¥2915"
currency: JPY
in_stock: true
category: "Mill So"
url: https://www.desertcart.jp/products/71186245-millso-1-4-male-to-3-5mm-female-headphone-adapter
store_origin: JP
region: Japan
---

# 24K gold-plated connectors for lossless audio 30cm flexible PVC cable for versatile connectivity Quad-layer shielding for crystal-clear sound MillSO 1/4 Male to 3.5mm Female Headphone Adapter

**Brand:** millso
**Price:** ¥2915
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—connect like a pro, anywhere, anytime!

## Quick Answers

- **What is this?** MillSO 1/4 Male to 3.5mm Female Headphone Adapter by millso
- **How much does it cost?** ¥2915 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/71186245-millso-1-4-male-to-3-5mm-female-headphone-adapter)

## 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

- • **Flexible & Portable:** 30cm durable PVC cable offers the perfect balance of length and portability for on-the-go professionals.
- • **Seamless Audio Fusion:** Effortlessly connect your 3.5mm headphones to 6.35mm jacks without losing sound quality.
- • **Shielded for Perfection:** Quad-layer shielding blocks interference, ensuring your music stays crisp and immersive.
- • **Universal Compatibility:** Works flawlessly with amps, mixers, keyboards, and more—your all-in-one audio adapter solution.
- • **Premium Build, Premium Sound:** 24K gold-plated connectors and oxygen-free copper wiring deliver pure, high-fidelity audio.

## Overview

The MillSO 1/4 to 3.5mm Headphone Adapter features 24K gold-plated connectors and quad-layer shielding for superior audio fidelity. Its 30cm flexible PVC cable ensures versatile, durable connections between 6.35mm stereo jacks and 3.5mm devices, making it ideal for professionals using amplifiers, mixers, keyboards, and headphones. Backed by a 12-month warranty and 24/7 support, it’s the trusted choice for seamless, high-quality audio integration.

## Description

desertcart.com: MillSO 1/4 to 3.5mm Headphone Adapter TRS 6.35mm 1/4 Male to 1/8 Female | Stereo Audio Jack Adapter for Amplifiers, Guitar, Keyboard Piano, Home Theater, Mixing Console, Headphones - 12 inch / 30 CM : Electronics

## Features

- MillSO 3.5mm to 1/4 adapter: Turn a 6.35mm male plug adapter into a 3.5mm female jack, ideal for connecting smartphones, tablets or headphones with standard 3.5mm plugs to audio devices with a 6.35mm stereo jack. Eg: piano keyboard to headphones adapter, guitar amp to speaker adapter, amplifier to headphones adapter, amplifier to speaker adapter, 6.35mm headphone to computer adapter, mixing console to speaker adapter.
- 30cm-More-Length: 1/4 to 3.5mm adapter, 30cm durable, and premium soft PVC jacket extension cable trends to create more available space between two connected devices. MillSO 1/4 to 1/8 adapter is very portable and has a quick response, tight connection, flexible convert a 6.35mm port to a 3.5mm port. (Please notice that the devices you use should also have a stereo TRS jack. Transfer audio between devices, no mic.)
- Qualified Audio Adapter: MillSO headphone adapter 1/4 to 3.5mm, 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. Standard 3.5mm jack and 6.35mm plug have outstanding compatibility which connects your devices firmly and ensures you enjoy wonderful music.
- Quadr-Layer Shielding: This 3.5mm to 6.35mm adapter 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.
- What You Will Get: MillSO offers 24*7 customer service and technical support for our products, to ensure your pleasing shopping experience. If you encounter any quality trouble or compatibility issues, please let us know.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DFFBNC5 |
| Best Sellers Rank | #15,405 in Electronics ( See Top 100 in Electronics ) #270 in Headphone Adapters |
| Brand | MillSO |
| Color | Blue |
| Compatible Devices | Headphone, speaker, electronic keyboard, Audio mixer, amplifiers, electric guitar amp/piano, stereo system, mixing console, home audio, home theater devices, AV receivers Compatible Devices Headphone, speaker, electronic keyboard, Audio mixer, amplifiers, electric guitar amp/piano, stereo system, mixing console, home audio, home theater devices, AV receivers See more |
| Connector Type | 1/4" to 3.5mm stereo |
| Customer Reviews | 4.7 out of 5 stars 5,941 Reviews |
| Finish | Metallic |
| Item Dimensions | 5.91 x 3.54 x 0.24 inches |
| Item Weight | 18.14 g |
| Item dimensions L x W x H | 5.91 x 3.54 x 0.24 inches |
| Manufacturer | MillSO |
| Mfr Part Number | YytcMTF635UUs30Cm |
| Model Number | F35-M635-30U |
| 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 via ❤️support@millso.com❤️if you need any help. |
| Warranty Type | Extended |

## Product Details

- **Color:** Blue
- **Connector Type:** 1/4" to 3.5mm stereo
- **Item dimensions L x W x H:** 5.91 x 3.54 x 0.24 inches
- **Specific Uses For Product:** Amplifier,Speaker

## Images

![MillSO 1/4 Male to 3.5mm Female Headphone Adapter - Image 1](https://m.media-amazon.com/images/I/61dNucP3a4L.jpg)

## Available Options

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

## Questions & Answers

**Q: Am I missing something? I connected this to my electric guitars and only got mono. I expected stereo.**
A: The output jack of 98% of electric guitars has a hot signal on the tip and a ground on the sleeve. That's why instrument cables have a tip and a sleeve -- to accommodate those connections. Plugging a stereo cable into a monaural guitar will not make it stereo. You're only get signal to the tip -- the left side output. If you want to hear out of both sides of earphones, you'd first have to run your guitar to a mixing desk, then to your headphones.

**Q: Do these work with beats headphones? I have a pair of the newer ones**
A: Dear MillSO Customer,
Thank you for your question.

If your bose headphones have a standard 3.5mm plug, you can test. This 1/4 to 3.5mm adapter is used to connect smartphones, tablets or headphones with standard 3.5mm plugs to audio devices with a 6.35mm stereo jack.

If you have any other problems, please contact us via support@millso.com, we will always be more than happy to assist you.

Best regards! 
MillSO Technical Support Team

**Q: I want to use my headphone on my Yamaha digital piano. my headphone is 3.5mm, and the piano is 6.35, will this work?**
A: Dear MillSO Customer,
Thank you for choosing us. 
Yes. This adapter fits for your headphone and Yamaha digital piano. But please notice that it has no mic function.
If you have any other problem, please contact us via support@millso.com, we will always be more than happy to assist you. 
Best regards! 
MillSO Customer Support

**Q: Would this work on a car radio the microphone input for your phone ? I have a micro phone 2.5 and I believe the radio is 3.5**
A: No. This adapter is 6.35mm male to 3.5mm female cable. If you have any other problem, please contact us via support@millso.com, we will always be more than happy to assist you. 
Best regards! 
MillSO Customer Support Team

## Frequently Bought Together

- MillSO 1/4 to 3.5mm Headphone Adapter TRS 6.35mm 1/4 Male to 3.5mm 1/8 Female Stereo Jack Audio Adapter for Amplifiers, Guitar, Keyboard Piano, Home Theater, Mixing Console, Headphones - 12inch/30CM
- VCE 6.35mm (1/4 inch) Male to 3.5mm (1/8 inch) Female Stereo Audio Jack Adapter for Aux Cable, Guitar Amplifier, Headphone, 2 Pack
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/71186245-millso-1-4-male-to-3-5mm-female-headphone-adapter](https://www.desertcart.jp/products/71186245-millso-1-4-male-to-3-5mm-female-headphone-adapter)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-29*