10mm Beryllium Diaphragm Driver HiFi In-Ear Earphone

    Present you a shockingly satisfactory sound effect
    Detachable 5N OCC Silver-plated Cable
    Built with German imported Egger resin
Color :
Product Price
$159.99 USD
Terms & conditions

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Free standard shipping to most countries

Free express shipping on orders over $200*. Enjoy free tax and duty paid to most countries. Please refer to our shipping FAQ to see if you apply.

Covid-19 Shipping Delay Notice

Shipping may be delayed due to covid-19 depending on your country regulations.
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Authenthic Products

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

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Worldwide Free Shipping

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*.

10mm Beryllium Diaphragm Driver

As we know, adopting Beryllium driver minimizes the audible ringing and distortion heard from traditional metal diaphragms (e.g., titanium or aluminum). Beryllium enables an extra octave of useable, non-resonant high-frequency energy-pushing breakup modes beyond the audible band. JQ 4U has made advantage of this type of driver to present you a shockingly satisfactory sound effect.

Detachable 5N OCC Silver-plated Cable

Cable is the least to be overlooked components in a HiFi earphones set. Thus we have chosen the high quality 5N OCC silver-plated cable along with the braiding technique. The cable can great reduce the distortion and improve transition. Detachable feature provides future upgradeability. You can either change the cable with a new one or just replace with a preferred cable. The choice is yours

Handmade Artistic Shell.

Handmade isn’t only about technique but also our attitude and aesthetics towards handmade earphones. Each pair of JQ 4U is carefully crafted by our artist with unique pattern. Designed with two colors, you have more choices. Built with German imported Egger resin, the shell is durable and stable as well

Ergonomic Design

Based on large data of human ears, JQ 4U is built with a special shape to fit your ear securely and also comfortable. It can also greatly decrease the noise. With it, you can enjoy longtime, no disturbance music, anytime anywhere.

4U (meaning for you)
10mm Beryllium Diaphragm Driver
0.78mm 2 Pin
Shell material
Imported German Egger Resin Shell
Audiophile-grade 5N OCC Silver-plated 4 Core Braided Cable

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Coming soon...

Customer Reviews

Based on 3 reviews
Thomas Herrle
my fav iem 2021

Thumbs up to JQ 👍 for this excellent IEM: buttery smooth tuning, gorgeous looks and ultralight comfy fit.
Excellent fast punchy bass. Addicting sound signature I want to listen with these for hours and hours....and I do.
I guess I'll order a 2nd pair in case they are no longer available.

Steve Fultz

I finally bought these from Linsoul on Amazon and I must say, they’re pretty good. I do think I payed a little too much, but worth it. The only thing I did was put on another cable for more bass. A copper cable really helps. I also used final “e”eartips. I would put these up against my KBear believes! Don’t expect a ton of bass, but they have enough. A little burnin helps. I would like to see more YouTube reviews on these to let people know. Good purchase, recommended!

Steve Fultz
Could be good?

I would like to buy these, but I’m afraid they might sound too much like the Fiio FD-1s or the Jade Audio EA-1s which I already have. I like single DD drivers and this one looks good. If it goes on sale, I might buy it. Keeping an eye on it. Only review on it is from BGGAR on YouTube!

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 $199 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 $200 include free express shipping (DHL or similar). If your order total is under $200 you can manually add Express Shipping at the checkout page for $15.00 - $35.00USD

Shipping FAQ's

Which countries do you ship to?

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

*Note: We can only do Standard Shipping for the UK, India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.

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 via DHL Express is 10-35USD depending on your country. If your order is over 200USD, DHL Express Shipping is free*.

*For some countries, DHL Express is only free for orders above $239USD. Large items such as headphones (e.g. HarmonicDyne Zeus, Gold Planar GL2000, and etc.) are exceptions as well.

Shipping fees exclude import taxes or processing fees that might be applicable for your country. Linsoul is not responsible for any form of such fees.

How long does it take to process my 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 2-3 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country and its customs. The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to DHL Express 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 my 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 shipping cost incurred.

How do I get help for my order?

For faulty/missing items, please send an email to support@linsoul.com to process warranty. In your email, please choose an appropriate Subject Title. Kindly include your Order Number, and state your issue clearly. Please also attach photographs/videos as “proof”, if any. 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

How do I order Custom In-ear Monitors (CIEMs) on Linsoul?

Please kindly check the following guide first: CIEM Ordering Guide

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.

What shipping companies do you use?

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

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