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$1,399.00 USD

4 EST + 2BA + 1DD Hybrid Driver HiFi In-Ear Earphone

    Present an enhanced vocal and provide high resolution and distinct layers
    Strong magnetic micro dynamic and the motivation
    Professional Cross-over Technology

4 EST + 2BA + 1DD Hybrid Driver

Kinera Baldr equips with a Knowles compound dual balanced armature to present an enhanced vocal and provide high resolution and distinct layers. Surprisingly close to the pure sound and offer you a full detailed sound experience. Despite that, selected Sonion EST65QB02 electrostatic driver shows beautiful transparent sound performance. The change of technology brings the easy drive of the electrostatic driver. The four electrostatic driver weighs only 148g, with built-in micro-transformer, the driver can reach more than 70KHz undetectable by human ears.

3 Layers PU + High-poly Fiber + Titanium Plated Composite Diaphragm

This configuration is a so much powerful and useful that it not only presents more realistic sound but also improves bass, enhances the tension of sound field, strengthen the resolution and mellow vocals. The dynamic driver uses strong magnetic micro dynamic and the motivation is N52 high magnetic flux ring magnetic steel. HD sound is anytime &everywhere for you.

Professional Cross-over Technology.

Kinera makes good advantage of mixed drivers with its cross-over technology. With the perfect connection of dynamic, balanced armature and electrostatic drivers, it makes the smooth curve. Based on monitor-level tuning with 4 EST drivers, Baldr has a very high resolution and can highly support pop, vocals and other music. The frequency response range is from 5Hz to 40KHz.

Variety of Cables Available..

Despite a detachable 0.78mm 2-pin 3.5mm and 2.5mm cables, a 2.5 to 4.4 extension cable is included. The 5N OCC gold-plated cable consists of 196 cores, made of 49 0.06mm OCC gold-plated material. The coating material is comfortable, soft, transparent and environmentally friendly with golden luster. Along with the unique 4-core cross- twist braided technique and gold plated copper plug, it can effectively reduce the distortion and sound quality loss caused by the signal transmission process. Make the sound better, more transparent and high fidelity sound quality. With this cable, you can achieve a wider sound field and hear richer details. At the same time, an adapter (pure copper gold plated) 3.5to 6.35 and an aircraft plug (made of aluminum alloy, nice and durable, strong anti-interference ability) convenient to use the earphone during flight

The One and Only Oak Wood Shell

Originated from the mythology, Kinera named this model Baldr. The oak is regarded as a symbol of Baldr due to its tough personality. The Baldr cavity is made of oak with the best quality among oaks. With 16 special processes and has a stable quality that does not deform, crack or dis-color. Each IEM has a unique natural wood grain appearance, just as there are no two identical leaves in the world.

Strict QC System and Excellent Structure.

Kinera cares about product a lot. Each model has passed hundreds and thousands of tests to make sure it is a perfect IEM for you only. Moreover, breaking through the structure limit, 7 drivers are built into such a compact cavity. Drivers are parallel placed, which can effectively use the cavity space and solve sound connection.

Ergonomic Desing for Comfortable Wearing

As usual, based on large data of ear canals, the shell of this product is designed ergonomically which also isolates external sounds. Tested strictly by artisan, Baldr is what you like. It is comfort-able and firm every time you wear it..

Rich Accessories.

Apart from cables and adapters, Baldr also provides 11 sets of eartips, including 5 sets of final eartips in different sizes. Users can choose the size of the eartips according to his request, so that could enjoy music. In addition, Baldr also comes with a premium storage box that is widely loved by users. Its surface uses the best quality cowhide with good texture and the interior has soft and comfortable suede materials and micro fibers. A removable high-grade strap can be adjusted anytime to make sure Baldr is always in good condition.

Free Shipping

Authenthic Products

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

Free Shipping

Worldwide Free Shipping

We are located in china but send our products worldwide for free.


1 Year Warranty

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


Online Support

We reply to all support inquiries within 3 working days.

Driver Combination
4 EST+ 1DD +2BA
0.78 2pin
Rated power
0.78mm 2PIN
Rated power
Wear type
109±2 dB
Frequency response range
Cable length
1.2 m

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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.

All items over $200 include free express shipping (DHL or similar). If your order total is under $200 you can manually add Express Shipping during the checkout period for $15.00 USD

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 options - Standard Shipping and Express Shipping via DHL Express.

  • Standard Shipping is free, while Express Shipping is 10-35USD depending on your country. If your order is over 200USD, Express Shipping is free.
  • 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.

Customized items will take a longer time (do check in with 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

Which countries do you ship to?

1. Kindly contact your local courier using the local tracking number. We will not process a refund or reshipment of the parcel since it has been shipped.

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 recipientRecipient was uncontactable when courier company contacted
  • 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 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 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 4PX, UBI, SF Express and DHL Express.