THOR Mjölnir

Next-Generation Beryllium Driver Earphone

    Created the next-generation of large-sized beryllium diaphragm
    Unusually strong Tesla Magnetic Driver
    Formed from the German EGGER medical-grade resin
    Much faster flux and quicker surface vibrations
Product Price
$199.00 USD $179.10 USD
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Free express shipping on orders over $270*. Enjoy free tax and duty paid to most countries. Please refer to our shipping FAQ to see if you apply.

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Linsoul Audio is the authorized distributor. All products are authentic and genuine.

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We are located in China but send our products worldwide for free. T&Cs apply.


1 Year Warranty

We provide 1 year warranty for the all products except the cables*.

About Thor

Thor was founded by a freelance engineer who has built up a sizable reputation in the DIY in-ear monitor community in China. Through close collaboration with local driver manufacturers, Thor has created the next-generation of large-sized beryllium diaphragm that is denser than those currently used on the market. With a vision for paramount sound quality and bespoke character, Thor is committed to hand crafting each earpiece in small batches and continually innovating the field of in-ear monitors

Mjölnir (Me-yo-neer)

With collaborations with local driver manufacturers, Thor has created a next-generation beryllium diaphragm that is more dense than other Be-drivers currently used on the market. The denser material and larger 10.4mm size allows a much faster flux and quicker surface vibrations, resulting in a much more detailed music playback and enhanced overall resolution. The new diaphragm material required pairing with an unusually strong Tesla Magnetic Driver to achieve the diaphragm’s maximum potential. The driver features incredibly powerful lows that emphasizes the subbass punch of kickdrums and bass guitars. The mid frequencies are characterized by rich warmth and clean texture, while the high frequencies are smooth, without being over or under bearing. The overall tuning of the Mjölnir is smooth and balanced, with sparkly details that sit perfectly in the mix. We believe lovers of impactful yet crisp bass will be thrilled by the new potential the Mjölnir and its beryllium driver is capable of.

One of a Kind Abalone Design.

Each Mjölnir unit is handbuilt by Thor’s founder and chief engineer. The housing is formed from the German EGGER medical-grade resin, which is both safe to the skin as well as extremely durable. The faceplate of each earpiece is crafted from hand-cut genuine abalone, which makes every unit unique and one of a kind. By focusing on small-batch handcrafted quality, Thor aims to create a sustainable and reliable company image that reflects the incredible sound of its in-ear monitors.

10.4mm dynamic driver
Frequency response
110 dB​
0.78 2pin

Coming soon...


Coming soon...

Customer Reviews

Based on 21 reviews
Love the sound and clarity but the BASS is really lacking in the sub-bass region

I have no idea why people are calling these basshead IEMs… They are clearly not. Go look at BGGAR and other’s reviews and graphs. The sub-bass rolls off and you can hear that clearly when you burn them in and then run through your bass test songs. Their bass is roughly equivalent to BLON BL03 but with a better sound stage can clarity, with the same lack of sub-bass as compared to others such as the TFZ lineup, Empire Ears Legend X, the Sony 12mm DD lineup, to name a few. The bass is ok but not impressive. It’s tight and clear and music that is not oriented towards bassheads sounds amazing. There may be a mod for it to increase the sub-bass since they have ports but I haven’t seen any yet.

Terence Dunne

Faster Than The Speed of Sound Thors Mjolnir Opened My Ears To The Beauty of Mystical Sound Waves of Thunder and The Clapping of Lightning Bolts From The Heavens Residing in My Mere Human Ears That Only Cherubs That Surround GODS Throne Can Experience Drums Harps Violins Cymbals Flutes Trumpets Human Voices Elevated To How They Are Intended To Be Heard 5 STARS!

Seth Hale
Hardest bass yet.

If you have something that hits harder bass than these, let me know. Not louder or boomier, but harder - moving more air and clearer.
The treble end is also very hard/clean/detailed - so much so that the V-shape is still too much. The exaggerated vocal treble they did was unnecessary, because I can still hear it very clear at lower volumes.

I wish this had a darker sound tuning, but I can't fault that beryllium driver.

José Luis Valencia Cuellar
Thor Mjölnir in ear

Son buenos no tienen tanto bajo pero si están reducidos en medios y altos. Sonido aceptable. Mil veces mejor que los beats o bose. Me gustan mas los fio fh1 y fh5.

Ricardo Lopez
Not what I was expecting

It suppose to be hand made and it's clearly not and that it had an incredible bass and it was a disappointment.

Alejandro Cabral Santana
Bass as bass was written to be.

Mid range is articulate and detailed, not as V as i thought it would be, highs are crips and nice, cymbals and china crash are clean and detailed, one of the best I’ve head in a DD

Soundstage is good, REALLY good, if it would go by number i would set it at 8.5 / 10

BASS: when i placed them on i was like “ah its ok...” 3 minutes into Opeth’s Damnation, i was already living the dream, this is the best bass I’ve tested, MASSIVE, RUMBLE, DETAILED, Head shaking

That’s what i wanted, and I’ve got it. I haven’t tried EE Zeus or any other god like headphone, campfire Vega was the last headphone that left me in awe, but this, this thought me a lesson: price tags ain’t everything. For me this is what i was looking for, good mids, good treble and enough bass to feel my head shake like no other thing

Cristopher Calderon
The best bass earbuds

I bought this as a recommendation from a Youtuber (vivirdigital).
I'm not disappointed. I'm a bass head and had use only Sony headphones or earbuds for my bass needs, but I was not completely satisfied with the sound. With this earbuds I can hear more clarity in the music and enjoy of a rich bass.
I have used this to listen to music, movies and video games. It does a great job at all those task, just keep in mind that I mostly play history driven games solo, in which I think they do an excellent job.

Juan A. Ocasio
Thor Mjolnir los mejores

Los mejores IEM que usado hasta el momento,buen sonido y mucho bajo como me gusta y a buen precio

Smihn Joth
A good buy

I was positively surprised of the bang-for-the-buck of these. The bass has proper punch in it without making everything else sound muddy. Nothing pops up unnaturally , pretty much nothing gets lost. Mjölnir's a well-thought and balanced IEM, I don't hesitate to recommend these.

Semen Gabyshev
Thor Mjolnir

These are fantastic basshead headphones that have very deep bass with good control that doesn't creep into the middle.
The middle is warm, without any distortions and ticks.
The upper ones are slightly pushed in, but without fanaticism you will hear all the cymbals and bells.
The scene is normal, more micro-contrast. Nice fit, as if they were made right under my ears. Noise isolation is good.
These were the pros, and now about the cons. Very long delivery, I waited 4 months. There is literally no delivery set.
Only headphones with cable, case and foam. Is Linsoul serious?

Our Shipping Process

If everything goes right our system will automatically generate your order and send you a confirmation email. If you don't receive the confirmation email please double-check that it wasn't automatically stored in your spam or promotions folder.

3 Working Days*

Most of the items you see are in stock and ready to be shipped after 3 working days. If you plan to order a custom (Design or Fit) product, a pre-order, or a made to order item processing times may change on item to item basis.

Standard Shipping
15 to 30 Days.

Standard shipping is offered free worldwide for orders under $269 USD (with some exceptions), but please consider that delivery times may vary considerably depending on your country, up to 90 Days.

Express Shipping
3-6 Working Days.

Most items over $270 include free express shipping (DHL or similar). If your order total is under $270 you can manually add Express Shipping at the checkout page for $15.00 - $35.00USD

World-Wide Shipping

Shipping FAQ

Which countries do you ship to?

We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.

We cannot ship to addresses that are "PO boxes or APO/FPO".

*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.
This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.

How much does shipping cost?

We have two shipping methods - Standard Shipping and Express Shipping.

Standard Shipping is free for most countries, while Express Shipping is 15-35USD depending on your country. If your order is over 270USD, Express Shipping is free*. 

*This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded.

Shipping fees exclude import taxes or processing fees that may be applicable for your country. Linsoul is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the two-way freight charges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.

Some parcels claimed to be “returned to the seller” may be destroyed by the post office or customs officers when buyers refuse to accept their parcels or fail to pay for their taxes. No refund will be processed for such cases.

Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Linsoul will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.

For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. 
Please contact us before placing an order, should you have any queries regarding shipping.  

How long does it take to receive the order after it is placed?

For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products. 

Customized items will take a longer time. Please contact our staff for more information.

On normal non-sale days, once your parcel has been shipped out:

  • For Standard Shipping, it takes about 2-4 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country, its customs and other factors.* The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to Express Shipping or keep the waiting time in mind.
  • For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.

*Note: Timings might be affected due to festive seasons or other unforeseen circumstances

What happens if the parcel has been shipped but not delivered?
  1. First, kindly contact your local courier using the local tracking number.
    If your parcel were to be in transit for at least 3 months, it may have been lost in transit.
    For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card.
    For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.
  2. Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:
    • Wrong address or phone number provided by recipient
    • Recipient was uncontactable when courier company contacted
    • Refusal to sign for the package by recipient
    • Lost or damaged parcel because recipient opted for “no-signature delivery”
    • Refusal to pay for the local tax/processing fee by recipient
    • Refusal to provide supporting documents for custom clearance by recipient
Who will pay for the import tax/custom fees

Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.

Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the two-way shipping fees incurred.

How do I get help for my order?

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team might not be available during non-working days and weekends, please place your order wisely.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email ( or website chat. We will help you with the changes if that could be done.

In general, upon receiving your parcel, please confirm the contents of the package and ensure that the package is in good condition before signing for it. All customers are strongly advised to take an unboxing video of their parcel and packaging when opening their parcels and products.

For faulty/missing items, please send an email to for after-sale services. The following details are required.
1) Send an email to with an appropriate Subject Title 
2) Provide your order number and state the issue clearly
3) Attach photos and videos to show that your product is faulty/missing. Shipping details on the parcel packaging have to be clearly visible.

If the photos/videos provided are insufficient to prove the stated issue, we will enquire more. Once the issue has been confirmed, we will arrange for a replacement, partial refund or a full refund (where applicable). For incorrect products, Linsoul reserves all rights in deciding whether you need to return the incorrect item or not. Please kindly contact us via email first. Our team aims to review your email within 3 working days.

For other queries, the fastest way to contact us is via our website or Discord

Linsoul Audio will not be responsible for parcels that have been damaged during the transit process.

Do I get tracking details for my order?

After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.

For more than 1 orders placed under the same account and shipping address, Linsoul will automatically combine the orders and ship them out via one tracking number. Should you have special requests to have the orders shipped separately, please kindly contact us via Discord or our website's chat. We will do our best to help.

What shipping companies do you use?

We collaborate with these courier companies:
Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
Express Shipping: DHL Express, FedEx and SF Express

Last updated: 1 November 2022

THOR Mjölnir
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