Crinacle-Tuned Signature Sound: Co-tuned with world-renowned reviewer Crinacle, Zero:2 delivers a refined, highly accurate sound signature with excellent tonal balance.

Enhanced Bass with Improved Tonality: Adds +3dB low-end gain for deeper, more powerful bass while keeping mids clean, warm, and free from bleed.

New 10mm Dual-Cavity Dynamic Driver: Features an upgraded PU+Metal diaphragm for faster response, harder-hitting bass, and improved clarity across the entire frequency range.

Upgraded Silver-Plated OFC Cable: The new coaxial silver-plated oxygen-free copper cable offers stronger durability and cleaner signal transmission, with detachable design for long-term use.

The 7HZ Legacy

7HZ made global waves with several of its most popular models. IEMs such as the Salnotes Zero, Dioko, and Timeless gathered massive popularity due to their amazing price-to-performance value. 7HZ has proven itself to the worldwide audience as a trusted manufacturer of high-performance IEMs, and will continue its legacy with better innovations and stronger community engagement. 

7HZ x Crinacle: The Collaboration That Made History

The original Zero, which was made in collaboration between 7HZ and Crinacle, made history by being one of the best performing budget IEM’s in the market. Crinacle is a world renown reviewer, whose frequency graph database has changed the audio market forever. Using his prolific experience with IEM and headphone sound profiles, Crinacle has provided guidance in tuning the Zero once again to have the best tonal balance possible. The updated Zero:2 features Crinacle’s inputs in order to refine this tried-and-true model in order to take it to the next level.

More Bass, Keeping Tonal Excellence

The original Zero had one of the best-in-class tonal balance for a budget single dynamic driver IEM. However, this tonal balance also meant taming the bass, which may have been lacking for audiences wanting a more exciting sound. The Zero:2 maintains the perfect sound signature whilst adding on 3dB more in the low frequencies, which provides an engaging and powerful bass presence to bring your music to life. Bass impact and extension are markedly improved, providing more texture and tactile hits to the lows. Additionally, the midrange has a slightly improved body and warmth compared  to the original Zero. The slight warmth in the low-mids provides a fuller sound to instrument and vocal fundamental frequencies, yet still keeping the melodies clean and free from bass bleed. 

New 10mm Dynamic Driver

The improvements in the tonal characteristics of the Zero:2 were made possible thanks to a newly developed 10mm dual cavity dynamic driver. With an upgraded PU+Metal composite diaphragm, the driver is significantly more responsive, allowing faster diaphragm movement. This allows for harder hitting bass, while maintaining crispness and precision with each note. With a frequency range of 10Hz to 20kHz, the improvements in the new driver is immediately noticeable. 

Improved Custom Cable

The Zero II has been upgraded with a new high-purity oxygen-free copper cable with silver plating. Arranged in a coaxial structure, each wire is woven with 140.06 and 250.06 winding to strengthen the cable, as well as bringing about better audio transmission. The cable is removable to customize your listening experience as well as enhance the longevity of your IEM. 

Technical Details

Frequency response range

10HZ-20KHz

Impedance

32 ohms

Total Harmonic Distortion (THD)

<1% at 1KHz

Driver

10mm dynamic driver

Cable Interface

3.5mm/Type-C

Plug Type

Detachable 0.78mm 2Pin

Inside the Box
  • 1 x 7HZ x Crinacle Zero: 2
  • User Manual
PRICE
$24.99 USD - $28.99 USD

30-Day Return Policy

You may return any non-customized product that is still factory sealed, within 30 days upon receiving it. For items that are damaged, incorrect, or faulty upon delivery, Linsoul will assess the issue and provide a solution accordingly.

1 Year Warranty

The 7HZ x Crinacle Zero: 2 Comes with a 1 year warranty on In-Ear Monitors and 3 month warranty on the cable.

Authentic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

Worldwide Free Shipping

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 and accessories*.

Online Support

Need help?, we are here to assist youMonday - Friday: 09:00 – 18:00 (UTC+8)

Customers praised the exceptional sound quality and value, with "perfect bass" and "very clear" audio. The design and comfort earned high marks. However, durability concerns emerged, with some reporting failures within weeks. The included cable received consistent criticism as "thin" and "poorly made," though the IEMs themselves were called "amazing for the price."

  • 5 stars: 196 (69%)
  • 4 stars: 54 (19%)
  • 3 stars: 13 (5%)
  • 2 stars: 9 (3%)
  • 1 star: 12 (4%)
w
wojtek.surmaczsandman (Nisko, PL)
mostly gaming

A liittle metalic in treble, soft warm in mids and pretty impressive bass for the price.
Separates well and has a decent stage.
I am not missing any directions when gaming.
Good comfort specialy for the price!

P
Priidik M. (Tallinn, EE)
Good IEM - regardless of it's low price

It has great if not top tier qualities in sound up to highest two octaves. In highs it is a bit too forgiving and mushy - but still decent. It does not have glaring flaws in sound.
Comfort is great - first IEM I've had that needed no fussing around to get good fit.
These do not work so well from weaker sources - like some laptops and phones.
I got the DEW4X for these and the combo is excellent.
These are better IEMs than any IEMs sold for 200 $ five years ago.
Value for money is ridiculous.

M
M.T. (Lisbon, PT)
Really high quality IEM's

I am quite surprised about the quality of the iems, its really on point, as i like bass they are quite quiet on the bass line still, but big improvements from the Zero's , really think its the best bang for the buck at the moment.

X
Xin L. (Surrey, CA)
Best earphone I have for mobile phones

I use it every day listening to tidal and YouTube. Love it.

S
Samuele o.
7HZ x Crinacle Zero: 2 estoy DECEPCIONADO...

7HZ x Crinacle Zero: 2, unos audifonos de 20 dolares que honestamente me dejaron decepcionado, en la reseña de joy los veremos en detalle y hablaremos de un juego raro que hacen con las frecuencias.

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M
Mikko L. (Helsinki, FI)
Among the very best IEMs at ultrabudget!

I have tested all good IEMs from the 20-30 usd price range, and Zero2 takes the cake! Just overall great balanced sound, good bass, good vocals. If you're looking to get into IEMs, or you're just in need of a great affordable daily set, this is it!

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N
Nicolas E. (Miami, US)
One of the best things I have heard under 50$!

I have tried many iems under 50$, and this is one of, if not the best I have heard. I have a Youtube review below with a comparison with the Simgot EW200.

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D
Diego R.R.G. (Cuauhtemoc, MX)
Great IEM whit a greats BASS

my favorite is the orange but this white one doesn't look bad at all, the cable also notice an improvement they are quite comfortable and light, no complaints in that aspect, inside we have a dynamic driver and they are really very easy to move. remembering the previous salnotes zero we have much of what we liked from the previous version which is good because we have a warm, detailed sound but now with slightly more bass.

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Y
Yordan V. (Septemvri, BG)
The best!

Nice

G
Greg S. (North Dartmouth, US)
Smooth and mellow

The Zero 2 has a nice balance of smooth and warm tone it's a well done Harman and midrange is mellow and rich, treble is controlled and natural, the design of the IEM is interesting and it should be comfortable for most people, it's a super pleasant sounding IEM.

N
Nihal S. (New Delhi, IN)
Nice pleasant sound at incredibly low cost

Impressions:

I just got these a couple of days ago. I like the looks on these iems. Blue is a lovely colour. The iems are very lightweight. I tried these with Azla SednaFit Light eartips.

Sound is more of a warm V-signature.
There is a mid-bass focus, which makes the overall bass mellow and warm, though there is not enough punch in it. The subbass has a presence when called for. Sometimes there is a bit of bass intruding into the mid-frequency range. On some songs with less bass emphasis, the mids sound a lot better, so few genre suit better, such as jazz, acoustics, etc.
The mids have a touch of warmth, are not as forward but not too far behind either, so kind of you get enough of them. The vocals are not thin and have a good body. There is no upper mids shoutiness, so that's a good thing I find in these iems.
The treble is fair enough. There is some okay detail, though it lacks energy, making it sound laid-back. A bit of more energy and better detailing could really help
Technically, they are just okay. The soundstage and imaging are just average; not that I was expecting anything great. If there were more clarity, it would have sounded a lot better. It fails to deliver good sound with busy tracks, so few genres—metal and rock, etc.—aren't its strong areas.
I think for the price of it, there is nothing to complain about. This is the cheapest IEM I have tried since I got into this hobby. Surprisingly, I did not find them bad; they have been in use since I got them. So, as per me, the sound is not bad. One can put them in use for long hours without any fatigue. I do not have the OG Zero to try, but going by other reviews, I see that these are almost comparable except for the bass department. The OG Zero sounded a bit flat. However, I am not sure of all the changes in these new iems.

Overall, a thumbs up from me for it's tonality and pleasing sound at such a low cost.

L
Lord-Ivan A. (Cebu City, PH)
A surprisingly less expensive IEMs start with!

Truth be told, I am not one of those Professional Audiophiles you'll see around. I'm even less than the average consumer when it comes to consuming music related products. I do however have a fair share of multiple wired and wireless earbuds/earphones/headphones used for more than a decade. This was the every first time I would try an IEMs, and what a great experience it is to be using this.

I would say this maybe an entry level type as I can see there are far more expensive and well rated/reviewed products in the market. The good news is, as a first time experiencing (IEMs), this was a great purchase for me and I'm very well glad to refer friends to such product.

M
Miriam

Sounds great and the mic also sounds ok

P
PikoloDepi
Orange / 3.5mm with Mic
7HZ x Crinacle Zero: 2

The performance is awsome for the price I paid! The bass is perfect and the durability is supreme. I have dropped it several times and have not found even a scratch on them. I love the design too. I will reccomend this product to everyone i know! Thank you for your product!

D
David

Great sound and ergonomics - for the price.

C
Christina H. (Silver Spring, US)
Pink / Type-C with Mic

Excellent but I keep breaking them I’ve bought z5 pairs and I need a new one again.

M
Moritz K.R. (Surrey, CA)
Orange / 3.5mm with Mic
Works great! But...

Sometimes while listening to music or just using it, it gets really crackley and staticky like it's glitching out, but after maybe 3-4 seconds. But I'm not sure if my dingle DAC is doing that. Otherwise I've never heard audio this clean before!

D
Dan D. (Făgăraș, RO)
Orange / Type-C with Mic

7HZ x Crinacle Zero: 2

L
Lordahn G.P. (Cebu City, PH)
Orange / Type-C with Mic

7HZ x Crinacle Zero: 2

J
Joshua

Love everything

C
Chris

I like the color

R
Robin S. (Olomouc, CZ)

the left Iem is much quiter than the right after just 3 days and i will not pay 35% fee to return it

Dear Customer,

We’re very sorry to hear that you’ve encountered an issue.

We would first like to learn more about the situation so that we can determine whether the issue may be related to the product. We have also sent you an email to follow up on this matter.

Please rest assured that once we have a better understanding of the issue, we will do our best to assist you and work toward a suitable solution.

Thank you for your patience and cooperation.

J
Jānis S. (Riga, LV)
Orange / 3.5mm with Mic

7HZ x Crinacle Zero: 2

I
Igor S.

They sound very very clear, a great upgrade coming from anything non highend, iem.

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