KZ - ZST X (Unboxed)

1x BA + 1x DD Hybrid In-Ears
Sale price₹ 1,399 Regular priceMRP: ₹ 1,999
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One of the reasons headphones and earphones in India are more expensive than overseas is because of the Goods & Services Tax in India.

Don't let the GST input go to waste especially if you can avail an offset.

All products sold on Headphone Zone carry a GST compliant invoice and all products sold include an 18% GST.

Simply enter your GST number at the time of checkout.

Browse EMI Plans

EMI Options through Other Credit Cards

Color: Purple
Type: With Mic


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 ₹ 287 ₹ 287 ₹ 0
6 Low Cost EMI ₹ 287 ₹ 150 ₹ 38
9 Low Cost EMI ₹ 287 ₹ 104 ₹ 75

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 ₹ 383 ₹ 0
6 No Cost EMI ₹ 192 ₹ 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 ₹ 383 ₹ 0

Zest Money

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 ₹ 383 ₹ 0

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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.

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.

Ideal for Taking Calls

These earphones/IEMs are designed to present how audio tech, typically associated with listening to music, can be used for two-way communications.

If you are someone who is working from home and needs to do a conference call or have a video call, you'll benefit from a pair of earphones/IEMs with a mic.

You can expect these earphones/IEMs to offer good microphone quality and clear audio without having to connect additional peripherals. Just plug them in, and express yourself!

1 Year of

Super Lightweight

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.

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.

1xBA & 1xDD

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.

Headphone Zone Certified Unboxed Units

Unboxed units are as good as new products with the product's packaging being unavailable. These products give you the same satisfaction of new products - but at down-to-earth prices. Usually, the product's packaging may have gotten damaged in transit. Customers use a product once or twice and then return it with opened up packaging.

Customer Returns

Returned headphones are fully functional products that have left the warehouse and therefore can no longer be sold as new as their packaging has been opened. The product may have been used once or twice by the customer who returned it.

Transit Damages

Sometimes we receive headphones in damaged packaging due to shipping accidents. These are brand new headphones with cosmetic flaws on the packaging.

Save Upto 15%

Since you won't get the original packaging, we give you a good discount compared to a new headphone.

Professionally Inspected

A thorough inspection means you receive a 100% working headphone with no sound output issues.

Original Warranty

All unboxed headphones carry the same warranty period as a brand new headphone would.

Unbiased Customer Service

We have the same Headphone Zone customer support experience for Unboxed Products or new products.

Unchanged Replacement Policy

Received a defective Unboxed unit? Return it under our Replacement Policy.

All Original Accessories

The unboxed headphones itself comes with all original accessories.

1 Year Warranty

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

Read more about KZ's warranty in India.


"The KZ ZST X to be as big an improvement over the original as it is. Itäó»s an earphone that performs extremely well in the context of its low price and direct competitors."

Read More

"The KZ ZST X to be as big an improvement over the original as it is. Itäó»s an earphone that performs extremely well in the context of its low price and direct competitors."

Read More

Customer Reviews

Based on 31 reviews
Pushpendra Kumar (New Delhi)
Genuine product

I got these earphones today and start listening to the music, it gives actually pretty good experience.
I purchased a unboxed product, it's condition is similar to the boxed product. So I'm very with this product and experience.
And at last I love your collection of songs which you have given on the pop,bass,indie... .
Loved it.

Hey Pushpendra,
Thank you for the awesome review!

Adarsh Bhat (Bengaluru)
KZ ZST X (Unboxed) - Really unbelieveable

Didn't expect much initially. But when I listened, I was blown away. The Sound is V much emphasis on clarity even though bass and treble are clearly differentiated. The songs, OST and others sound so different than others. Headphonezone is an ear Saviour if i might add. I am not going back to my other TWS/Neckband/earphones.

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

purvansh gondalia (Bhavnagar)
Great value product

I like bass and treble are warm vocal are little pressed, soundstage is good, sometimes clarity is missing on some song otherwise great 😃😃

We appreciate your honest review & ratings, purvansh gondalia!

Balaji MS (Chennai)
Medium Range

Good sound effects and enjoyable with regards to Team for advice. Keep it up

Hey there, nothing makes us happier than knowing you loved your purchase, hope you had a comfortable shopping experience & thank you for the great review & ratings!

Jasvant Singh (Mumbai)
:Loved it!

The IEMs are correctly hyped, they sound amazingly great for the price range. If I had to nit pick the flaws, It will be 1) The cable can get tangled 2) Can listen for very long hours as ears starts to hurt.

Nitin Varun (Delhi)
Headphone Zone is a place to be for Audiophiles

KZ ZST X (unboxed) is my first product from headphone Zone. I was in doubt while ordering but when I listened to ZST X I totally shocked that what I have been missed till date about music. The headphones produce great sound every detail with tight base. This is truly amazing and having other le vel of experience in Audiophiles life. Thanks to headphone Zone team for introducing me to KZ Acoustic!!!!

Hey Nitin, thanks a lot for this lovely review and we are glad you are enjoying it! Keep the music playing.

S. Shekhar (Ahmedabad)
Very Mediocre

KZ - ZST X with DD+1 BA...I suppose how the balanced Armature is in place and what is it doing?. There is a very sharp shrill tone which is ear piercing at times. And instead of balanced bass there is bump and thump in bass and sub-bass...which I find quite erratic. The IEM's Sound Signature is neither V Shaped nor Balanced...rather it is high on Treble Side to make it sound clearer hence is missing out on good Tonal quality...
I tried Pink Sound for eight hours straight in Controlled manner hoping to balance the IEM but to no avail.... I'm not an expert in Audio presentations but this KZ - ZST X is surely not justifying its business...This KZ - ZST X might be okay for post production listening but surely it IS NOT MEANT FOR PRODUCTION OR REAL MONITORING.
My Suggestion: Go only for Single Dyn. Drivers that would suffice if it is properly tuned or if you want DD+BA then go for DD+2BA or DD+4BA which should give more balance output...This single BA (Balanced Armature) is actually causing a great IMBALANCE actually....