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MillSO

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

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Size: 1 FT


Color: Blue


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.

Description

MillSO 1/4 to 1/8 cable (6.35 to 3.5) is a 6.35mm male plug into a 3.5mm female jack adapter, for connecting smartphones, tablets, iPod or headphones with standard 3.5mm plugs to audio devices with a 6.35mm stereo jack. Eg: piano keyboard to headphones adapter, guitar to speaker adapter, amplifier to headphones adapter, amplifier to speaker adapter, 6.35mm headphone to computer adapter, mixing console to speaker adapter... 6.35mm Male Adaptor: 3.5mm Female Stereo Adaptor: Visit the Store Visit the Store Visit the Store Visit the Store

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


Specific Uses For Product: Amplifier,Speaker


Connector Type: 1/4" to 3.5mm stereo


Color: Blue


Item dimensions L x W x H: 5.91 x 3.54 x 0.24 inches


Compatible Devices: Headphone, speaker, electronic keyboard, Audio mixer, amplifiers, electric guitar amp/piano, stereo system, mixing console, home audio, home theater devices, AV receivers


Specific Uses For Product: Amplifier,Speaker


Connector Type: 1/4" to 3.5mm stereo


Number of Ports: 2


Power Plug Type: No Plug


Brand: MillSO


Model Number: F35-M635-30U


Manufacturer: MillSO


Mfr Part Number: YytcMTF635UUs30Cm


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 ❤️❤️if you need any help.


Item Dimensions: 5.91 x 3.54 x 0.24 inches


Item Weight: 18.14 g


Package Quantity: 1


Unit Count: 1 Count


Number of Items: 1


Color: Blue


Finish: Metallic


Warranty Type: Extended


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Solid Adapter That Just Works
Size: 6.6 FT Color: Blue
I picked this up to connect some older gear, and it’s been doing exactly what it’s supposed to do. The connection feels snug on both ends—no crackling or cutting out when you move the cable around, which is usually where cheap adapters fall short. The 6.6 ft length is actually useful instead of being awkward, especially if your setup isn’t right next to you. Cable feels durable without being stiff, and it doesn’t tangle much. Only small downside is it’s a little bulkier than a simple plug adapter, but that’s expected with the cable length. Overall, it’s reliable and gets the job done without any issues—no complaints. ... show more
Reviewed in the United States on April 17, 2026 by PelicanBayPartners
    • Great Items
Size: 6.6 FT Color: Blue
Works flawlessly and is a tight connection
Reviewed in the United States on June 22, 2026 by Alexander Liesegang
    • Perfect Adapter for My Gaming Setup!
Size: 1 FT Color: Blue
Transitioning from a gaming environment to my RodeCaster Pro 2 has been seamless, all thanks to the MillSO 1/4 to 3.5mm Headphone Adapter. Here's what I love about it: Pros: - Effortless Conversion: Just plug and play, and I'm good to go. - Sturdy Design: It feels robust and doesn’t seem like it'll wear out any time soon. - Clear Sound: No static, buzz, or any other disturbances. Pure, clear audio every time. Cons: - Honestly, none so far! Final Thoughts: If you're in need of a reliable adapter for audio conversions, especially for high-end equipment like the RodeCaster Pro 2, look no further than this MillSO adapter. It’s got my vote! ... show more
Reviewed in the United States on August 31, 2023 by Amazon Customer
    • Superior to standard adapter - works with 4 pole plugs!
Size: 1 FT Color: Blue
The cable is made from quality materials, including sturdy female and male plug ends and thick rubber surrounding the wires. It has excellent sound quality. I A/B tested against multiple adapters including high quality studio options and this cable sounds as good or better than all of my others. The added cable length makes it easy to swap multiple headsets in my home recording studio. Most importantly for me is that this works with 3 AND 4 pole 3.5mm plugs, meaning I can use my stereo reference monitor headphones (3 pole), then quickly swap them for a gaming-type headset (4 poles) to hear my recordings through different sounding headphones. The audio signal with 4 pole headphones doesn't short out like it does with other adapters. Excellent build quality. Excellent sound. Great price. Highly recommend. ... show more
Reviewed in the United States on May 8, 2020 by Helena
    • MillSO perfect for late night TV watching
Size: 16 FT Color: Blue
MillSo Headphone adapter 1/4 inch to 1/8 inch 16 ft cord is perfect for late night TV watching that allows you to set the volume at a level comfortable for you without disturbing others. I live in a shared wall setting and the wall is pretty thin. I can hear my neighbors muffled conversations (no clue what they are saying) and TV, however with the headphone adapter plugged in to my AV amp they can't hear my TV very late at night. I can clearly hear the TV programs without upsetting my neighbors at 1 am. I highly recommend this product as a cost effective way to listen in a "silent cinema" way. Well made with quality materials and durable use after use. ... show more
Reviewed in the United States on January 12, 2022 by Leslie Hubbard
    • Great adapter with no sound quality loss.
Size: 10 FT Color: Blue
The MillSO 1/4 to 3.5mm Headphone Adapter is a great way to connect my headphones to devices that have a 1/4 inch headphone jack. The adapter is made of high quality materials and construction, and it is very durable. It is also very easy to use, I simply plug the adapter into the 1/4 inch jack on my device, and then plug my headphones into the adapter. The adapter works great with a variety of my devices, including amplifiers, guitar amps, keyboards, pianos, home theaters, and headphones. It is also a great way to connect my headphones to my computer or laptop. If you are looking for a 1/4 to 3.5mm headphone adapter, I highly recommend the MillSO 1/4 to 3.5mm Headphone Adapter. Pros: High quality materials and construction Durable Easy to use Compatible with a variety of devices Great value for the price Cons: None that I have found ... show more
Reviewed in the United States on April 19, 2023 by Bryan K Jameson
    • Works great
Size: 1 FT Color: Blue
It worked great and kept the stereo input my church uses it every week for the live stream to connect the headphone output from the mixer to the camera via an XLR to 3.8
Reviewed in the United States on February 5, 2026 by akili mathews
    • nice
Size: 1 FT Color: Blue
Very nice!
Reviewed in the United States on December 25, 2025 by HomeStudioGuy

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