10mm Carbon Diaphragm Dynamic Driver In Ear Monitor

    Get Extra 10% OFF If You Purchase Two BL03 code:BLON2PCS
    Kirsite Mirror Polished Metal Shell
    Professional ear canal data analysis
    Supreme Quality Cable
Mic :
Color :
Cable Options :
Product Price
$38.99 USD $26.99 USD
$26.99 USD
Terms & conditions

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.

Covid-19 Shipping Delay Notice

Shipping may be delayed due to covid-19 depending on your country regulations.
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. T&Cs apply.


1 Year Warranty

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

10mm Carbon Diaphragm Dynamic Driver

BLON BL-03 Earphones adopts the carbon diaphragm dynamic driver which can fully reduce the strong human voice drum point of mid-low frequency, restore a shocking low frequency sound effect. You can fully enjoy a magnetic bass experience.

Kirsite Mirror Polished Metal Shell

 Made from Kirsite, the heart-shaped BL-03 earphone is truly an eye-catcher with its mirror polished cavity. The exquisite feel and aesthetics are perfectly shown in this model. Streamline design also excels in in longevity with its features of anti-skid, anti-scratch ect.

Ergonomic Design

The earphone is mold based on professional ear canal data analysis. The special shape is comfortable for long time wearing too and at the same time it can increase the passive noise reduction effect. It’s improved by adjusting the angle and position of the sound tube to the ear canal, achieving a high fit.

Supreme Quality Cable

The detachable cable is made from 4 strands of anti-tension and anti-interference wire for main wire. The 90° earplug design and 3.5mm gold plated plug make the cable long lasting. The built-in microphone is also available for choosing. One click operation is easy to use too.

Product Name
BL-03 In-ear Earphone
Driver unit
10mm Carbon Diaphragm Dynamic Drive
Earphone sensitivity
Frequency response range
Plug Type
3.5mm Gold Plated L Type
Cable length
Earphone Interface
0.78mm 2pin
Nozzle diameter

Coming soon...


Coming soon...

Customer Reviews

Based on 176 reviews
Giga worth

These are great, nice sound and they fit just right. The cable isn't perfect but it does the job. Also the ear things are nice. Also these can withstand a washing machine although the wiring might come off...

Nice warm iems but quality control issues

They sound nice for their price. The tuning is likeable for most of the people, its bassy and fun sounding but not the most clear. I was enjoying my pair until left side stopped working completely. I was able to use it only for 2 months. Quality control issue is frustrating.

Dear Customer,

Thank you so much for your reaching out to us. We are sorry about your problem. Please feel assured as we will try our best to help you to fix the problem.

BLON BL-03 Earphones adopts the carbon diaphragm dynamic driver which can fully reduce the strong human voice drum point of mid-low frequency, restore a shocking low frequency sound effect. You can fully enjoy a magnetic bass experience.

In this case, could you please try other cables or change the cable side to test whether the issue can be fixed?

If the issue still exists, could you please update a video to show the product problem and send it to us via email (

As for a video, please take off the eartips, then play a song and turn up the volume, then put the lens to each side to show the sound difference.

Once we confirm the issue , we will try our best to help you with it.

If you encounter any problems in the future, we sincerely suggest that you contact us via email ( the first time,because we can solve your problems in a more comprehensive way.

At the same time, we will also contact you by email and look forward to your reply.

Your patience is so much appreciated.

John S.
Very decent for the price

It's the first iem I use. At first listen I could tell it is a quality audio device but I don't really like the sound signature. I tried to eq it but it got tiring after a while. So now I am on default eq and I think I have either got used to it or it broke In and it's better now. It's metallic and round so quality and comfortable enough for the ear. Sometimes it doesn't feel lively enough and then I turn the volume up and it's great most of the times. It's almost as if it changes character in different volumes.

Tony b
Short nozzle. Does not fit everyone.

When the seal is right, it sounds good. Build quality is nice with the metal body. Considering the price, you get what you pay for with the wire, so I can't complain there either.

The biggest con for me was the nozzle being too short. For my ears finding a good seal was only accomplished by holding the IEM on a certain angle in my ear. I have experimented with all supplied eartips with no luck. I have yet to try the recommended spinfit tips, which are supposed to cure this problem. They have been sitting in the case since unfortunately.

Hello there,

We are sorry that our product aid not satisfy you.

The BLON BL-03 is mold based on professional ear canal data analysis. The special shape is comfortable for long time wearing too and at the same time it can increase the passive noise reduction effect. It’s improved by adjusting the angle and position of the sound tube to the ear canal, achieving a high fit.

But we are sorry that this may not be suitable for everyone's ears, we have reported your situation to the manufacturer, and it will get better and better in the future.

The nozzle diameter of BLON BL-03 is 3.5mm, we sincerely suggest that you can try other eartips.

If you encounter any problems in the future, we sincerely suggest that you contact us via email ( the first time,because we can solve your problems in a more comprehensive way.

Thank you for your support and understanding

Really pretty awful

I had some $8 Skullcandy earbuds from Target that sound more detailed and accurate than these. Perhaps something was wrong with mine, but they're the most awful sounding iem I've ever put in my ear.

Hello there,

We are sorry that our product did not satisfy you.

BLON BL-03 Earphones adopts the carbon diaphragm dynamic driver which can fully reduce the strong human voice drum point of mid-low frequency, restore a shocking low frequency sound effect.

Sound is subjective, but your opinion is valuable and we'll give it back.

If you have any questions, please send an email to

Have a nice day!

Michael Bryenton
BLON BL-03 - great sound for the money.

I have been using my BLON BL-03's now for over a month and am quite impressed with the sound and build quality. My only issue is fit (I have small ears). Even with replacement tips, as the BL-03's are heavy they tend to lose their seal, forcing me to readjust quite often.

jesus aldea gracia
suenan regular con los cables originales

deberian poner un cable de mejor calidad. Ademas les falta algo de graves y sino ajustan bien se quedan muy pobres en bajos. No los volveria a comprar , creo que soy un bass head. y no son apropiados para los amantes del bajo. gracias

Aaron-Elias John
Awesome value

A friend recommended these in ear headphones and so I got them. The sound is incredibly rich and clear - especially for headphones in this price range.

The only thing I had to get used to is the "cable over the ear" approach.

I would strongly recommend to give these headphones a try.

Andy Aragon
they sound terrible

some reviews stated they would sound better by upgrading the ear tip and the cables - i dunno but they sounded really bad out of the box and were uncomfortable in my ears. i wanted to return but their customer service told me there is a 35% restocking fee plus shipping cost, so not worth it - i strongly do not recommend buying

Hello there,

We are sorry that you are not satisfied with this product.

All customers should read and confirm our terms and conditions before placing orders with us to avoid unnecessary losses.

If you don't like the effect of the headphones, please try the suggestions in the comments. Hope that helps you.

If there are any other questions, please feel free to let us know.

Have a nice day!

Jeremy Cerna
Very clear and hassle free

Didn't have high hopes for something inexpensive, but now I can't listen to music any other way. Very happy to have purchased with such great quality.

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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