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 €26,99
Terms & conditions
This Product is a Pre-order

Processing Time before shipping: 7-10 working days during sale if out of stocks avg.

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

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 184 reviews
good sound but uncomfortable

This is the first time I buy these kind of over-ear earphones... and ohmy they are very uncomfortable. I really don't know if all earphones of this type are like this, or if it's the BL03 which is like this.
Anyways, most of the times when I'm about to leave my house and I have to choose between my cheap $2 Samsung earphones or the BL03. 90% of times I choose the Samsung. Cable doesn't entangle and I barely feel them when I waer them. The BL03 are a pain to carry and wear.
Besides that there are 3 very positive points: price, sound quality (excellent) and noise isolation.
Negative points: comfort, cable (looks very cheap), and no volume control.

Christian De Vido


Johan Blackestedt
Hi Linosul - short review - 2-3 stars.

Mostlly fun and rewarding when i buy something cheap, and i hit the spot. I have learned that i have to read several reviews carefully before spending any amount, to avoid the irritation of choosing the wrong iem.

After some reading i choosed the Blon bl3. The chinese iem world is new to me. Everybody want to sell their stuff. Maybee some are payed to be biased?

This one was replaced by the Final e 3000, which on some material sounded engaging, good, with my Duoo link dac, also depending on what tips i used. The biggest tips made sound to thick/a bit muddy on some songs. The medium one better. On electronic music and rock convincing.

The Blons behave differently, with the Duoo link dac. I dont know what they sound like without the dac. Blon. In my ears the mids and treble somewhat overpowering the base. A bit agressive to my ears, not enjoyable. What disturbes me the most is the default earplugs do not fit. They do not stick to my ears. Linosul sent one pair of plugs which was to small. I believe a known problem. The sun has its spots.

I had to start reading ear tips reviews. I bought the spinfit CP 100. They did not fit, but better than the deafault ones. I have to constantly press them against ears. Annoying.

Positive: In a way i like the sound projected in the middle of my head, and the bass enough for me when plugs covered.

Finale: Would i recommend them? Sorry, but no. Maybee If you are looking for a cheap iem, If they fit your ears, and If the material you play is hi res, i think you will think they are ok.

I think i have given up on the iems. I do not want to buy new tips and be dissapointed again. But still, im curious how they performe with the Etymotic tips. According to them they seal good. It should solve the bass problem and hopefully, in my ears, on some material, prominent vocals and a treble.

Thank you.


Jam Garrett


Nuno Sao Pedro

Perfect sound for me

Very comfortable!

The best part of these IEMs is their small size and for me they have a very comfortable fit. The sound is pretty decent, though there's too much bass for my personal preference. Came with a nice cotton bag to hold everything in. Soundstage, cable, and mids/highs are decent. Though there is some flashing on the plastic parts of the cable, so not the highest quality molds.

Stepan Denysenko


The real budget killer set

Just incredible value for the money. Not the last word in bass, soundstage or cable build quality. The cable is detachable, though.

Tuning is just bang on natural and upper mids/treble are very well presented that way. Not the most technical set but the naturalness of everything fixes pretty much all these "problems".

The accessories are also a wee bit thin in quantity and quality. (Tips in picture are NOT included, they are the OG TinHifi foam tips).

Then you come down to the price and at that point this set becomes what you would call a NO-BRAINER. Just a massively solid rec.

Oscar Stenvall
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.

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

You have successfully subscribed!
This email has been registered