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Electrostatic Driver DD BA 7 Hybrid Drivers HiFi In-Ear Earphones

    Excellent Hybrid Driver
    Customized Red Carbon Fiber Faceplate
    Flexible Detachable 2Pin OCC Cable
    Collaborative Tuning
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Product Price
$669.00 USD
Terms & conditions
This Product is a Pre-order

Processing Time before shipping: 7 working days avg.

This is a rough estimation. It may change without prior notice.

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Free standard shipping to most countries

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

HBB X SHUOER Customized Red Carbon Fiber Faceplate

The faceplate is a flaming red carbon fiber that fully represents the namesake of the set. Chassis has a fine froasted finish that is CNC milled and oxidated. This creates a surface that is smooth to the touch and resistant to scratch. Also this kind of material is durable and stable after a long time of use.

Hybrid 7-Drivers IEMs At Your Doorstep

An all-star 7-drivers array that redefines high fidelity. Well arrangement of electrostatic driver, balanced armature and dynamic driver deliver an accurate and detailed sound performance. 10mm carbon nanotube DD. Dual Sonion 2389 BA drivers and quad Sonion EST65QBO2 electrostatic drivers that is your hifi experience to the next level.

Collaborative Tuning

As described by HBB himself “The LAVA is a slightly re-tuned EJ07m with an adjustment to the mid-bass The adjustment, which is slight, gives more energy to drum kits. bass guitar and male vocals while maintaining the upper mids and extension (via the quad EST) This set would be aimed at listener who likes a little more note weight and punches without sacrificing the mids”

High-Purity OCC Cable

Shuoer EJ07M HBB is equipped with a 1.25m high-purity 100 stands high purity 6N 0CC copper cable. It features a braided structure to help reduce the cable noise and keep the cable lightweight and flexible. It has standard 0.78mm connectors.

Driver Configuration
10mm carbon nanotube DD+Dual Sonion 2389 BA drivers and quad Sonion EST drivers
19 ±1 ohm
Distortion rate
Standard 0.78mm
Cable length

Coming soon...


Coming soon...

Customer Reviews

Based on 2 reviews
Jakub Tomša
Do I need any other IEMs?

So, I'm not a reviewer at all, but since these IEMs have only 1 review here, which is ridiculous, I'm gonna throw my two cents in. Maybe it will convince a few more people to give these a try.

First of all, the only other IEMs in my collection are Blon BL01, Blon BL03, Trinity Audio Vyrus V2, Geek Wold GK10 and that's about it. I don't have serious listening experience with any other IEMs, so keep that in mind.

My music library is full of different genres – Prog Rock, Metal, Hip Hop, EDM, different OSTs… These played basically anything I threw at them like champs. OOTB, some of the tracks showed a bit of harshness in the highs/upper mids, but I believe the burn in did it’s thing and the sound became nicely rounded. These are now giving me detailed, holographic sound with just the right amount of quality bass. Mids are almost to die for, beautiful and engaging as they should be. Where these may be lacking a bit is in separation on very busy tracks – think of Devin Townsend and his walls of sound, or some extreme Metal. But this music is hard to replay for any headphones, so I guess I’m nitpicking here. What I know is, that if the track has been engineered and mastered well, it’s an absolute pleasure on these.

As a source I’m using either HiBy R5 (OG version) or Cambridge Audio DacMagic XS. Sounds great on both, but R5 can give these some serious juice from the balanced output to make them sing to the best of their potential. I mean you can really crank it up and these babies will keep their composure across the entire range.

What is also worth mentioning is the size of the shell. These are tiny compared to some of the other tribrids, which I find absolutely brilliant since I have smaller ears.

I know that it’s a huge jump in quality coming from BL03 for example, but I’m really rediscovering my entire music library which is extremely exciting! When I regularly get shivers down my spine during listening sessions, I know I have something special. And yes, I’m either bobbing my head or foot-tapping constantly 😊

Think I’d give these something like 4,75/5 ⭐

Patson Godinho
Decent but after sales service is bad

GOOD IEM but bad after sales service, good luck shipping any repairs back to China

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

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