Beryllium Diaphragm Dynamic Driver in-Ear Earphone

    Supreme Quality Cable.
    Technical Excellence Meets User Preference
    Ergonomic Design.
Color :
YBF-ISS014 Silver
Product Price
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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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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*.

10mm Beryllium Diaphragm Dynamic Driver.

URBANFUN YBF-ISS014 Earphones adopts the Beryllium diaphragm dynamic driver which is more like a U-shaped sound curve and it 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 deep bass experience

Mirror Polished Metal Shell

Made from stainless steel, the heart-shaped earphone is truly an eye-catcher with its mirror polished cavity. The special shell can suppress unwanted vibrations and support the drivers. Streamline design also excels in longevity with its features of anti-skid, anti-scratch ect.

Supreme Quality Cable

The detachable cable is tested, polished and extended in the production process which greatly reduces the distortion. It’s anti-tension and anti-interference wire. The pre-shaped 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

Portable and Compact

Coming with a storage box and the earphones can be easily stored. Feel free to take it anywhere and not afraid of abrasion. 3.5mm universal jack can fit most devices too, simply enjoy the HiFi world with this earphone!

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

Driver unit
10mm Beryllium Diaphragm Dynamic Driver
Earphone sensitivity
Frequency response range
Plug Type
3.5mm Gold Plated Straight Type
Cable Length
Earphone Interface

Coming soon...


Coming soon...

Customer Reviews

Based on 11 reviews
spin dablock

amazing iem, some of the best money ive ever spent, totally rec it...🗽👿

Victor Chu
Balance issues..Possible defective IEM

Read there are issues but when for it. Well got a bad one. First one out of many bought and this one is a bad one.

Possibly better than Blon03. Yes possibly.

The treble and mids have a smooth roll off. Treble and mids not quite as forward as blon03. Bass is dynamic, bass imaging fantastic, bass is very good control and can hit hard on some songs. More fuller sound compared to blon03. If you compare then side by side listening to blon03 they compare very well. In some aspects they are better than blon03. This set is a polite set. You can listen to them all day, same as blon03. Nearly outstanding on every song on different Dap's that I have. But have not heard that magic yet from any particular songs like I have heard on Blon03, Legacy 3 and Voyager 3. Purchased 08/02/2020 Amazon Linsoul. I believe these are Beryllium drivers. I'd be pissed if they were not. Also thank you Beggar!

Hassan K

Energetic set that never fails to get me up and pumped up, Great Detail and and fun bass which is a steal at this price. Can easily recommend.

Martynas G
Excellent Stuff

These are really good. Like for 60 USD you can't beat them.
Superb Bass, in some songs it can a bit overpowering but generally it is really pleasant and impactful.
Mids: pleasant and natural.
Treble: Slightly elevated but with nice resolution. Sometimes can be a bit harsh in some poorly done songs, but usually doesn't bothet me.
Imaging: Fucking excellent, I think best I have heard so far.
Separation: Excellent, "Far from any road" by Handsome family. You can focus on all instrument and beeps. Everything is clear.
Soundstage: really wideeee, wider than m1060C but not deeper. Deepness is average, but matched with widness gives quite holographic presentation.
VS Blon 03 Blon sounds lower resolution, less refined, less bass. Soundstage is about same.
VS Gr07, GR07 is sybilant, resolution is not far off.
I do rek these.

Javier Villegas
Analytical version of the BLON's

The beefiness and weight of the bass slam is much more satisfying than the UF's. The BLON's bass is less controlled but better hitting. The UrbanFuns have a more contolled bass but leave much to be desired. Imo the bass on the UrbanFuns cant touch the BLON's

The treble on the UrbanFuns are very forward and more present than the BLON's. Cymbal crashes have a nice sparkle to them. The BLON's with the right tips can give you a nice treble spike that can come close to the UrbanFun's, while I like the timbre of the treble more on the BLON's, the UF's take the cake because it has a better sparkle. The UF's might be a bit too bright for some people.

The fit on these are much better than the BLON. Not much to be said here, I find them both comfy but the UF's don't rest on my tragus as the BLON's do.

While each set has it's pro's and con's I have yet to decide which is the best set. The UF's are a brighter, more detailed, airier, more analytical, less bassy version of the BLON's. If that's what you're looking for look no further. I think these are two very different monsters that deserve respect, but they're very different sonically so it's hard to say which is the better set, really depends on what you're looking for in an IEM.

Bassheads stick to the BLON
If you want more treble and a better fit go with the UF's

Tips used;
UrbanFuns: Azla SednaEarfit (size M)
BLON: JVC SpiralDots (size M)

David Rupp

For me these are perfect. Flat sound curve, great detail and nice soundstage. At this price they are an amazing bargain. Everyone's ears are different and people like different things. If you like what I describe, you have to try these. At that price you can't lose.

(Lance 2)
Detailed and Underwhelming; BLON wins.

In all of the songs, games and 3D audio demos I tested the YBF against the BLON in, I preferred the BLON pretty much every time. In short, it has a more balanced, natural, smooth, pleasing sound, and the YBF sounds like monitoring speakers with a treble/detail-focused, thinner, sub-bassy, un-naturally balanced sound. The sub-bass and detail resolution of the YBF is impressive compared to the BLON, but I don't feel like I'm missing anything when listening to the BLON. As soon as a better fitting BLON v2 comes out, I will be all over it...!

+ More resolution
+ More sub-bass
+ Better fit
+ Great box contents package
- Too much treble forwardness & fatigue
- Relatively thin sounding
- Tonal balance seems weird/off

+ Thicker, weightier sound
+ Smooth treble
+ More overall bass meat & punch
+ A little bigger soundstage & better imaging(?)
+ Great tonal balance
- Challenging fit

(DAC = Topping D50s, amp = JDS ATOM)

The blob killer

Gotta say...if you like the blons you are gonna love the urbans. Better fit...smoother bass...and more of it. Cable is nice and well behaved. No chin slide on these suckers...but that's no big deal. They look like a couple of steel bearings being highly reflective and all...very cool looking actually. Urbans deserve a listen...

A better BLON-03

BGGAR reviews has suggested the BLON BL-03 and it turned out to be pretty fantastic (not just for the price). A couple months later, the Urbanfun is in stock again. All I can say is wow. If you liked the BLON you'll pretty much love these. It's a pretty substantial upgrade in my opinion. Bass seems to be dialed down a bit but still slams. Mids seem pretty smooth. Vocals are a bit better than the BLON's but still not my favorite for them. Treble seems airy and natural. Nothing sharp or sibilant from what I've listened to. Soundstage seems to be pretty good in it's width. Tonality is spot on for my preference.

*Note: I currently have these in my lineup; FiiO FH5, Moondrop Starfield, BLON BL-03, and the Final E4000. The Starfield and these have been my goto's for the past week. Still love all the other iem's for different genres.

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 (Support@Linsoul.com) 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 support@Linsoul.com for after-sale services. The following details are required.
1) Send an email to support@Linsoul.com 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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