Everyday hi-res listening
Cut the phone cable without giving up the detail and fit of your favorite IEMs.
Wireless freedom. Audiophile detail.
Turn your favorite IEMs wireless.
Upgrade the earphones you already love with Qualcomm QCC5181, high-resolution codecs and a connector built for your exact IEM.
- LDAC, aptX Adaptive and lossless-ready audio
- MMCX, 0.78mm 2-Pin, QDC, IE Series and more
- Built for everyday listening, gaming and calls
Secure checkout · Worldwide delivery options · Connector support before you order
$125.00 · Best seller
Hi-res wirelessPremium Qualcomm codecs
Made to fitConnectors for leading IEMs
Compatibility helpAsk us before ordering
Secure checkoutProtected payment options
Featured experiences
Built around how you listen.
Two new campaign scenes combine your original product direction with the dark technology style of the redesigned store.
Choose by listening style
One upgrade. Three ways to listen.
Start with how you use your IEMs, then choose the connector that matches your earphones.
Gaming and live streaming
A practical dual-battery setup for longer sessions, voice chat and mobile use.
Long listening sessions
Neckband designs keep controls and battery weight comfortable through the day.
Recommended models
Find your best match.
Three clear starting points for different priorities. Every model is available with multiple IEM connectors.
Best seller
QCC5181 Bluetooth 6.0 IEM Upgrade Cable, 8-Strand Gold & Silver-Plated Copper Wire with LDAC, for MMCX, 0.78mm 2-Pin and QDC Earphones
Dual-battery flexibility for gaming, streaming and everyday wireless listening.
Longest listening
QCC5181 Bluetooth 6.0 IEM Upgrade Cable, 8-Strand Neckband with 100-Hour Battery for MMCX, 0.78mm 2-Pin & QDC
An 8-strand neckband design made for extended listening sessions.
Balanced choice
Qualcomm QCC5181 LDAC Single-Battery Bluetooth IEM Upgrade Cable – MMCX, 0.78mm, QDC & IE80S
A versatile QCC5181 upgrade with a broad range of custom connector options.
Connector confidence
Your IEMs deserve the right fit.
Choose the connector used by your earphones. If you are unsure, contact us with your IEM model before ordering and we will help you match it.
Find your cable
MMCX connectorFor Shure SE215, SE315, SE425, SE535, SE846 and more.
QDC / KZ C-Pin connectorFor QDC Anole and Neptune series, KZ ZSN, ZS10 Pro, ZSX, AS12, AS16, CCA C12, CA16 and TRN models.
0.78mm 2-PinFor Moondrop · Kiwi Ears Astral · Truthear · Kiwi Ears Cadenza II
0.78mm 2-PinIE SeriesA2DCIM Series
About Ruilin
Built by people who understand every connection.
Founded in 2017, Ruilin Industrial (Shenzhen) Co., Ltd. is a professional supplier specializing in consumer 3C electronic accessories. Our core product lines include data cables, IEM headphone upgrade cables and Bluetooth headphone cables.
We manufacture core products in our own factory and maintain stable, long-term partnerships with qualified manufacturers. By combining independent production with diversified supply-chain resources, we provide reliable, cost-effective products for customers worldwide.
Independent production
Our own production line gives us direct oversight of assembly, workmanship and delivery efficiency.
01
Production and testing equipment
Dedicated equipment supports component processing, laser work, assembly checks and performance testing throughout production.
02
From components to finished cables
We manage key stages from electronic modules and cable assembly to finished Bluetooth and IEM upgrade cables.
2017Founded in Shenzhen
3Core product lines
GlobalAliExpress and independent-store sales
Real customer feedback
Proven in everyday listening.
Eight genuine customer reviews imported from our AliExpress store. Original screenshots are available for transparency; channel prices and order values are not displayed.
★★★★★
AliExpress customer review
0.78mm 2-Pin · Kiwi Ears Astral
Very powerful little neckband, it had zero effort driving my kiwi ears astral iem's and via floogoo 121 transmitter zero latency via gmap for gaming.
View original review
★★★★★
AliExpress customer review
MMCX Earhook
These are excellent, absolutely with every cent. The battery life is better than the spec. Really great sounding and comfortable.
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★★★★★
AliExpress customer review
0.78mm 2-Pin
They hold a charge for a very long time, the sound is excellent. The noise canceling works. I don't like that the wire is twisted and needs to be looped around the ear. There are no connection issues.
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★★★★★
AliExpress customer review
0.78mm 2-Pin
As expected, it works flawlessly. The seller even made sure that the correct plug was ordered.
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★★★★★
AliExpress customer review
QDC · KZ Castor
LDAC does its job. The sound is natural when playing DSD and FLAC files on the KZ Castor, without any EQ adjustments. You could expect slightly stronger bass. You can always use some equalizer. Ultimately, though, it's about the natural sound, as recorded by the artist. I don't know yet how the battery will perform (I've been using it for too short a time), but I hope it's at least as good as the quality of music played via Bluetooth. Additional feedback: The battery has the advertised capacity (after several hours of listening, 4-5 hours) and still has up to 80% of its capacity remaining. I recommend purchasing it again. Best regards to the seller.
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★★★★★
AliExpress customer review
0.78mm 2-Pin
Exactly what i expected, no problems with connection
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★★★★★
AliExpress customer review
0.75mm
Good quality. ios/android shows 0% charge at first start - fixed after full charge. aptx hd, ldac - supported.
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★★★★★
AliExpress customer review
MMCX Earhook · Blue
I previously purchased another wireless module from this seller. Compared to the previous product, this one is superior in every aspect, including sound quality, ease of use, and design. The seller was also very helpful and communicated carefully with me regarding the connector, which i really appreciated. I highly recommend this product.
View original review
Reviews are reproduced from our AliExpress store. Prices may vary by sales channel.
Before you order
Quick answers.
Which connector should I choose?
Check the connector on your current IEM cable and the model list on the product page. If you are unsure, contact us with the exact earphone model before ordering.
Will LDAC or aptX work with my phone?
Codec availability depends on your source device and its software. The cable will use the best compatible codec supported by both devices.
How long does the battery last?
Battery life varies by model, codec, volume and usage. Review the specifications on the individual product page for the model you select.
Can you help with compatibility before purchase?
Yes. Send us your IEM brand and exact model through the contact page and we will help identify the correct connector.