BLON - 4 Core Upgrade cable


4 Core Silver Plated Cable | Compatible with BLON BL03 and BL05 earphone | Improved Sound Quality | 2 Pin | 3.5mm/4.4mm Jack | Wider Soundstage | Affordable Upgrade Option

₹ 849 ₹ 1,499 Save ₹ 650

Tax & Shipping Included

Tax IncludedShipping Included

Size: 4.4mm

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Free Shipping on Prepaid Orders

Same day dispatch, if ordered before 2:00 PM. Info Order Placed before 2:00 PM will be shipped within 24 hrs. (Except Sunday and Holidays)

Cash on Delivery Available Info Cash on delivery applicable for order under ₹ 15000

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Earn upto 5% of order value

With GST invoice, save up to 28% on business purchases


10 Days Replacement Policy for Manufacturing defects. Info All products are covered by 10 Day Replacement Guarantee. This product is eligible for a free replacement, in case you receive a damaged, defective or different item. Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement. Accessories like cables and eartips are not backed up the manufacturer's warranty.

Please note that physical damage cases need to be brought to our notice within 24 hours.

Simply Contact us through the chat window if you find any issues with your order.


ENHANCED SOUND QUALITY: The BLON - 4 Core Upgrade Cable is designed to improve the sound quality of your BLON BL03 and BL05 earphones. It delivers better bass, high and low-frequency response, and sound separation, providing a more immersive listening experience.

WIDE COMPATIBILITY: Compatible with BLON BL03 and BL05 earphones. It is equipped with 3.5mm, 4.4mm jacks and 2-Pin connector for easy connectivity with various devices.

IMPROVED DURABILITY: The cable is silver plated, enhancing the sound quality and improving the cable's durability. It reduces signal loss and interference, ensuring that your music is delivered with clarity and detail.

EASY INSTALLATION: The cable features a 2-pin connector that allows for easy installation and improved connectivity. The pins fit securely into the earphones, providing a stable connection and preventing any accidental disconnections.

WIDER SOUNDSTAGE: The BLON 4 Core Upgrade Cable provides a wider soundstage, which makes the music sound more spacious and immersive. This means you can enjoy your music as if you were listening to a live performance.

AFFORDABLE UPGRADE: The BLON 4 Core Upgrade Cable is an affordable way to upgrade your BLON BL03 and BL05 earphones. It delivers significant improvements in sound quality and durability, making it a great value for the price.

Shipping Policy


We usually ship orders on same day if ordered before 2 pm or within 24 hours if ordered later (except on holidays/sunday, where processing times may be higher) from one of our domestic warehouses based out of Delhi. It normally takes around 1 to 5 business days for delivery. We use premium service partners such as Blue dart, DTDC and Delivery for faster and reliable service. A tracking number will be provided upon shipment.

In very rare cases when order is not received after 10 business days of shipment (extended by number of days when the govt. Restricts movement of goods due to factors such as coronavirus pandemic), please contact us and we will provide you a support.

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Customer Reviews

Based on 4 reviews
Anonymous (Kolkata, IN)
Just go for it

I've been using it, blon is the best.

Thank you so much for taking the time to leave us this review.

amandeep retuneaudio (Delhi, IN)
Great price

The audible difference was definitely there.
I was tight on budget, this one fits my budget. Thus ordered one. It may look flimsy, but its pretty strong. Should last for good 2-3 years if used carefully.

Thank you so much for taking the time to leave us this amazing review.

Robert Singh
BLON 4.4mm Upgrade Balanced Cable: A Sound Quality Improvement at low price

I bought the 4.4mm BLON 4 core upgrade balanced cable for my BLON HBB Z300 IEM. I definitely noticed an improvement in sound quality with the balanced cable, as it provided a wider soundstage and more detail. However, the stock cable is much better made than the upgrade cable. The upgrade cable is more prone to tangles and feels less durable.

Overall, I would only recommend the upgrade cable if you are looking for a 4.4mm balanced cable for your Blon IEMs with QDC type connectors (Blon QDC types are different from other brands such as QKZ, KZ, etc. and does not fit with cables from these brands). If you are happy with the sound quality of the 3.5mm stock cable, I would recommend sticking with it.

Please note, any other 2 pin type connector cables will work with the Blon IEMs, except they do not fit properly like the stock cable and they can be costlier than the BLON 4 core upgrade cable.

On a side note, Thank you to Concept Kart. The service and delivery was really quick and hassle-free, definitely a 5 star service.

M.P. (Lucknow, IN)
Music Producer's review

Hello 👋 I am a music producer. recently bought this product (Blon BL03) and here is my review
1- Buil quality is really reliable. MIC's performance is good. comes with L shaped jack.
2- Sound quality matches the hype. very sound separation and best for EDM lovers
the lows and highs are slightly over for those who want a balanced sound signature
1- Earbuds feel quite heavy and hard to hold
2- and it comes with really very bad ear tips feel hard plastic. so, for comfort buy third party ear tips

Thank you so much for taking the time to leave us this review and We’re normally known for our exceptional attention to detail, and we regret that we missed the mark.