1Custom - Junior

In-Ears With 1 DD + 2 BA Drivers
Sale price₹ 15,999 Regular priceMRP: ₹ 16,999
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Expected to be restocked by 1st week of April

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Tenure available: 3, 6 and 9 Months Eligibility: Above 18 years of age, Credit Card NOT Required Transaction value: Available on all orders Payment Gateway: Please choose Snapmint Cardless EMI at checkout
Tenure Interest% Downpayment Installment Interest
3 No Cost EMI ₹ 4,000 ₹ 4,000 ₹ 0
6 Low Cost EMI ₹ 4,000 ₹ 2,088 ₹ 536
9 Low Cost EMI ₹ 4,000 ₹ 1,446 ₹ 1,040

Snapmint Cashback Offer

Offer valid from 22/03/2023 to 31/03/2023
Users will get 10% cashback upto a maximum of ₹500
The offer is valid only for transactions made through the Snapmint payment option.
The offer is valid only for the first transactions of customers through the Snapmint payment option.
The Cashback offer is valid from 22nd March at 12:00 am to 31st March 2023 at 11:59 pm
The Cashback will be processed on the same day in the Snapmint wallet on which the last EMI is paid.
Cashback is valid only when the customer pays their EMIs on time.
The offer would not be applicable in case of canceled or refunded transactions. In case of a partial refund, the cashback will be applicable only on the remaining value.
The Offer can be availed only once per user during the campaign period.


Tenure available: 3 or 6 Months
Eligibility: All above 21 years of age
Transaction value: Available on all orders below Rs. 60,000/-
Payment Gateway: Please choose Razorpay at checkout

Cashback offer
  1. Valid from 10th Feb to 9th April
  2. Users will get 10% cashback up to a maximum of ₹1000
  3. The offer is valid only once per user during the offer period.
  4. No coupon code required.
Tenure Interest% Installment Interest
3 No Cost EMI ₹ 5,333 ₹ 0
6 No Cost EMI ₹ 2,667 ₹ 0


Tenure available: 3 Months
Eligibility: All Simpl users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Simpl Pay in 3 at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 5,333 ₹ 0

Bajaj Finserv

Tenure available: 3 Months
Eligibility: All Bajaj Finserv card owners
Transaction value: All orders above Rs. 4,500/-
Payment Gateway: Please choose Razorpay at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 5,333 ₹ 0


Tenure available: 3 Months
Eligibility: All Zestmoney users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Cashfree at checkout

Tenure Interest% Installment Interest
3 No Cost EMI ₹ 5,333 ₹ 0


Cashback Offer
  • Select Cashfree at Checkout to transact through Mobikwik
  • Get Additional Cashback upto Rs. 500/- on transaction via MobiKwik wallet
  • Use Code :- MBK500 on MobiKwik Payment page to avail the additional cashback.
  • Transaction to be done through MobiKwik wallet only
  • Offer can be availed on minimum transaction of Rs. 1999/-
  • Offer can be availed once per user during the campaign
  • Offer valid from 10th January'23 till 30th June'23
  • T&C Applied

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Designed in

Balanced Sound Signature

Wired Earphones with a Balanced sound signature presents a precise sound and an enriching listening experience, where sounds are naturally presented without extreme emphasis on any region. With a pair of headphones with this sound signature, you can hear audio with clarity and detail. The sound is vivid and revealing, a perfect mixture of instruments and vocals, lows, mids, and highs. This sound signature works for most music listeners who like switching between various music genres like Classical, Jazz, Blues, Rock, Folk and Pop.

1 Year of

Ideal for Audiophiles

These earphones/IEMs are designed for discerning music lovers. If you are someone who cares about audio quality deeply, you'll want a pair of earphones/IEMs like these. You can expect them to present a Hi-Fidelity listening experience.

The audio quality exhibited by these earphones/IEMs is a beautiful mix of musicality, technical brilliance and high precision. These earphones/IEMs deliver a spacious and open soundstage with utmost clarity and detail. Delve into pure sonic bliss with these earphones/IEMs!

Ideal For Casual Music Listening

These earphones/IEMs are your go-to when you want to sit back and relax. If you’re someone who is looking to listen to music without worrying too much about the technicalities, then these are the perfect fit for you.

You can expect these earphones/IEMs to work conveniently and pair with most devices like smartphones and laptops without needing a DAC & Amp. These offer the ultimate convenience, but we believe that if you care about an immersive listening experience and audio quality, these are not for you!

Ideal for Commuting

If you’re someone who enjoys listening to music while commuting, then you know the value of a good pair of earphones/IEMs. These earphones/IEMs allow you to listen to your favourite track, make that important call on the go or even block out the world for a focused podcast listening experience.

You can expect these earphones/IEMs to offer a seamless connectivity experience. They are lightweight in design and provide noise isolation as an added functionality.

Best Suited for Portable Use

2 BA + 1 Dynamic

Replaceable Cables

A pair of headphones with a replaceable cable has many benefits, and one of them is if the connecting cable has a problem, it doesn’t mean that you have to buy a new one. If the connecting cable gets pulled or damaged, you can replace it and keep using your good-old headphones or IEMs. This way, your headphones will be protected and will last longer. With the advancements in cable manufacturing, you now get a variety of replacement cables with various termination options, lengths and quality.

Works with Android & iOS

One thing all of our phones have in common is that they have replaced the portable media player. These headphones and devices are perfect to pair with your Android and iOS devices and offer functionality previously unknown. If you’re someone who usually switches between a variety of devices with different OS, then these are suited for you. You can expect these headphones and devices to connect seamlessly without any hassle and even offer OS-specific functionality depending on the device. Headphones and devices designed to work with Android and iOS come in wired and wireless formats. Quite often you will also find Hi-Fi equipment offering direct connectivity to devices with Android and iOS to simplify the connectivity process.

Tangle-Free Cables

Every time you reach for earphone/IEM cables to connect them to your earphones/IEM, no matter how neatly you "wrapped" them up, they end up in a giant Gordian knot of frustration. Tangled cables are the bane of modern existence, and everyone owning a wired pair of earphones/IEM can attest to this.

With advances in cable-making techniques and radical approaches to manufacturing, there are now several solutions to this universal problem. You get Flat cables, Mesh Design cables, cables coated with exterior covers and cables designed with a zipper style design to avoid Tangle and attempt to solve the issue.

I first thought that the customizable switches were a gimmick. But they're not. My favourite setting is 'Detail'. It's incredible the detail and nuances that this IEM brings to the table. But the USP for me is the ultra-wide Soundstage. I haven't heard that on any other IEM.


Raghav Somani is the Founder & CEO of Headphone Zone. An avid audiophile and musician since 2008, his choice of headphones include STAX Electrostats, Audeze LCD 3, and for music on the go, the JH Audio Roxanne + Astell&Kern SP1000 is never too far away. On his playlist, you'll find A.R. Rahman, Michael Jackson, and the Eagles.


The 1Custom Junior is designed with utmost precision for the best audio reproduction. 1Custom Junior features a hybrid driver configuration with two different types of driver technologies. It comes equipped with a single dynamic driver and two balanced armature drivers. With this, the earphone presents a high-resolution outcome. Each of the drivers is independently fine-tuned for a wide soundstage with lesser resonance. There are also tuning switches on the IEM allowing you to tweak the sound to your liking. You can feel free to play around with the tuning switches and discover your preference. They are pretty effective while not overpowering the other frequencies in any way. The structural design offers more consistent sound across all frequencies to deliver shiny highs and deep bass.

Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior


1Custom Junior has been designed keeping comfort in mind. The redesigned 1Custom Junior features an ergonomically shaped earbud which allows for a secure and snug fit. This new design allows the earbuds to ergonomically conform to the curvature of the concha offering a better fit. The shiny coating on the buds ensures the longevity of the sheen of each shell. The 1Custom Junior also has metal nozzles that have a lip. The lip will be useful to ensure that most ear tips will stay in place and not slide off and get stuck in your ears. This allows the nozzle to sit more closely to the ear, making it super comfortable to wear for long listening sessions and do not cause any fatigue.

Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior


The 1Custom Junior comes bundled with a detachable cable with an 2-Pin connector. This cable is made of high-quality materials, allowing for transparent and detailed sound transmission. There are also 2 sets of high-quality ear tips included with 1Custom Junior, allowing users to change the tips best suited for a snug fit. 1Custom Junior also comes with 1 padded resin hard case to easily store and transport your IEMs.

Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
Headphone-Zone-1Custom Junior
1 Year Warranty

Don't sweat it, this 1Custom - Junior comes with a 1 Year warranty from 1Custom that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about 1Custom's warranty in India.


"The stock tonality of the Junior is on the slightly brighter side, but it does offer a smooth bass region and a euphonic midrange with a wide soundstage."

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"If you’re looking for a comfortable IEM with switches to slightly tweak the sound, a nice build quality, I totally recommend getting the 1Custom Junior IEMs from them."

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"The 1Custom Junior from Jaben Singapore has an excellent value. The Bass is quite beatiful, with an excellent amount of impact, a nice sub-low extensions, mid-bass presence too."

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Most watched reviews for 1Custom - Junior

Customer Reviews

Based on 21 reviews
Sakshi Asna
Bliss to my ears

The Custom Jr has a great fit & is comfortable enough for long listening hours, being fairly easy to drive. It's easy to pair it with anything, Though the wires do not have a mic, its not much of an issue for me. I generally use this pair with my FiiO BTR5 & the experience is surreal. Thank you for Headphone Zone for the quick delivery & the playlist cards were just the best

Thank you for the great review & rating Sakshi!

Ankur Oberai (Delhi)
Design and Comfort:
Sound Quality:
Value for Money:
Excuse my French, but they are f****ng marvelous!

I tried all settings, the difference is 5% or so, really subtle. I am just going to mention the setting with max bass. The bass is tight with fast decay, not meddling with lower mids at all. Vocals are amazingly natural. Highs are extended, airy and detailed.

Soundstage is wide as a playground. I think I am in love with these IEMs. Special thanks to Danish from headphone zone who guided me to these over FD3 and FH3.

We are glad that you are liking the product & had a good shopping experience with us. Thank you so much for the amazing review & ratings, Ankur Oberai!

Arjun (Bengaluru)
A gem of an earphone

I am not much into earphones and basis of comparison is with a shure 215 and Astel and Kern Billie jean. This is warmer more detailed and with a deeper and cleaner bass. loved it using the Detailed setting. I now use it with the Shure True wireless module and its a great match so far.

We're really happy that you have such great thoughts about the product and thanks for the amazing review!

Bharadwaj Aryasomayajula (Hyderabad)
Design and Comfort:
Sound Quality:
Value for Money:
Mesmerising Earphones

Just Amazing - After attending the Headphone connect at Hyderabad, I ordered these and these are just amazing - no words.

I am writing below line after using this product for about 2 months - the built quality is not that great - I was trying to change the wire and pushed it slightly in to its holder on earbuds and on one of its ear but the holder got broke - it was just a slight push. I did not expect this.

Anandhi Ravi (Siliguri)
Design and Comfort:
Sound Quality:
Value for Money:

Music quality is great comparing to other iems. Worth of money

Thank you for the awesome review & ratings, Anandhi Ravi!

Adi Mehta
Couldnt ask for something better

The junior is a perfect value for money at this price point. Totally meant for bass heads. I Wanna thank the gurus for introducing recommending this beauty.

Thank you for the great review & ratings Adi

Adil Singh
In Love!

Owe you guys one for getting this to India. The packaging is bare-bones but the sound makes up for everything. Would recommend this one any day over your mainstream chi-fi iems

Delighted to know that you are loving this IEM. Cheers!

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