








Item Descriptions:
color:
Purple no microphone
I will introduce about KZ ZST (without purple / microphone type).
spec]
type:
Canal formula
driver:
1 Dynamic Driver + 1 Balanced Armature Driver
Remote control microphone:
Nothing
color:
Purple
Impedance:
18 Ω
Cable length:
1.2 m (Y type) 2 pin (proprietary) Re-cable compatible
sensitivity:
120 dB
plug:
3.5mm gold-plated L type
Reproduction frequency band:
20-20000 Hz
◆ audition environment
DAP (digital audio player) mainly uses iphone 4s and Xperia Z3's smartphones.
◆ Listen tracks
"Believe / Kalafina"
"RAY / BUMP OF CHICKEN"
"Who What Who What / dignified and rain"
"Piano Concerto No. 2 / Rachmaninoff"
"R.Y.U.S.E.I./ third generation J Soul Brothers from EXILE TRIBE"
"Enya / Only Time" etc.
※ 100 hours is spent on aging (break-in operation).
[Balance of sound]
Low range (base, drum bus, etc.)
★ ★ ★ ★ ☆
Mid range (major sounds such as vocals and pianos)
★★★★
High frequency (cymbal, hi-hat, etc.)
★★★★
zst (sound quality)
[Sound quality] ★ ★ ★ ★ ★
Even though the sound quality is lower than the low range, the middle and high frequencies are ringing well, and there is a gorgeous feeling.
It is easy to hear if there is gaudiness also.
I think that it is a wonderful tuning that is natural and easy to hear without tuning unusually biased.
I said that the sound field (spread of sound) is somewhat spread.
It is not at least like feeling a blockage feeling, and there is no particular dissatisfaction.
Although it is slight, I also write down points I was worried about.
First, in some songs, the sound of the very low range is too strong (enough to shake the ears).
I felt occasionally with dance music songs and intense taunts.
And this is also a part of the songs, sometimes it seems that the middle-high range is stuck in the ear.
It was a female vocalist such as Kalafina, and I occasionally felt it.
The characteristics of this earphone are summarized as follows.
· It is "gorgeous sound" and it is a natural way of ringing, the clearest sound quality among the products of KZ.
· Impression that the sound firmly comes out in all bands, although it is a low frequency sound quality.
Glittering.
[Supplementary matter]
· By adjusting the included earpiece, you can adjust the sound quality.
In case
1 Dynamic Driver + 1 Balanced Armature Driver (2 Drivers Installed)
In the dual hybrid configuration of ZST,
It consists of one ultrahigh-range balanced armature driver + medium / low-band dynamic driver 1 unit,
By taking charge of each assigned range, we derive merits,
I realized the sound field feeling, the three-dimensional feeling of a different dimension, and the professional level listening experience from my earphone.
Sound field & resolution The sound field is fairly wide, in addition to the spread to the side, you can also experience the stereoscopic effect in the vertical direction.
In addition, the feeling of graininess of the sound stands out, you can experience the sound full of resolution.
Zst of WTSUN Audio
"KZ ZST Upgrade Cable (Optional)"
A re-cable is possible.
The combination with the KZ ZST earphone is the best.
KZ ZST upgrade cable is a 4-wire handmade cable and flexible.
By using high quality materials, it also has high durability.
KZ ZST Upgrade cable link:
https://www.amazon.co.jp/dp/B01MZ45JXU
Our company (WTSUN Audio) 's ZST earphone is genuine.
Our company sells ZST earphone with permission from KZ company.
Please pay attention to the names of our company and other stores when purchasing.
Our company's name is WTSUN Audio.
Please, thank you.
WTSUN Audio
Is
We pursue customer satisfaction, specialty shop offering various high-end HiFi audio earphones.
We will strive to provide our customers with cost-effective earphones and after-sales service on a daily basis.
12 months warranty (repair / replacement correspondence)
If defects occur in the product within 12 months from the date of purchase, we will repair or replace it free of charge.
Features:
Product information:
Shipping Weight: 63 g
Package Dimensions: 3.20 x 7.19 x 10.31 cm
Customer reviews from Japan:




Personality
This earphone does not have the ability to carry out the entire range of the sound, but its disadvantage becomes individuality, I want to listen to familiar music with this earphone. I wonder why that kind of thing is also ^ ^




Good vibes
cool. The texture of the attached code is a bit ... I think the sound is normal.




The sound quality is wonderful
Sound is a good one in this price range. I think the design itself is also very good.




The appearance is bad but the sound is good
I made an order with somewhat uneasy feeling that it is made in China. Since delivery uses air mail, it arrived in real 4 days. It was a feeling that the packages of corrugated cardboards were deliberately packed, but, as a bonus, the earphone case was attached. Looking inside, the joint part of the main body is a rough feeling, and paint patterns and ear pads are cheap and it was uneasy whether a really decent sound comes out but anxiety was solved by listening to the sound. The higher and lower ranges are sufficient, and the sound quality also appeared because the smoothness and spread of the sound came out from the time the break-in was over. As this price is the evaluation from the viewpoint that this sound can be heard at this price, those who care about appearance may become different evaluation again. Durability is not yet evaluated because usage time is still short.




If the quality is stable
Purchased black microphone first. The sound quality is quite high grade in terms of high resolution, wide sound field, etc. I felt it was definitely worth more than the price. I can also appreciate the opinion that we can compete with 10,000 yen class. As environment, it is used in two ways: ① PC → audio interface, ② xperia z3. Although it was high sound quality as mentioned above in both cases, it was felt somewhat high tones in ② so it is corrected with an equalizer. Is the device dependency around here a characteristic of BA? Although there are many opinions that it is better to change earpieces, I personally feel that this earpiece is also good. It is an image that sounds at a position that is not too close and not too far, although certainly the bass may be few, but when you want a delicate sound than a treble, it is just good. Sound insulation and sound leakage prevention performance are slightly lower than ordinary Canal type. In a train etc, together with the low amount of bass, the sound outside tends to be annoying. (It can be improved with the equalizer.) Sound leakage seems to be caused by a slight hole being opened in the housing, and some improvement was made when closing the hole with a cellophane tape. ====== I liked it very much, but the sound seemed to be interrupted as it seemed to be disconnected at about 2 to 3 weeks of use. (This was probably fairly complicated.) I bought another piece of code even if I bought only the code, so I bought another black microphone for anything but this was out of the ordinary. I hear only the sound like a channel on one side caught. I diverted the previous individual only to the driver, and I use it with the code without the microphone.




Worth a try
Initially, when I heard it at the usual volume, the high-pitched sound was thin and the bass sounded unsatisfactory, but when I tried making the volume feeling bigger, the impression changed. If you change the earpiece there will be some improvement. Personally I got a gap in the housing and there was no slider on the cable and I was concerned about the mysterious protrusion instead. I think that it is a fact that there are variations in quality, but it is a product of a low price zone and it is good to try various things.




First Chinese Earphone
First Chinese Earphone. I bought it in the review, but a big hit! I did not think this was good! Also complaints of shops are complaints, even the back chorus is surprised to be able to be distinguished. At this price this level may not be domestically produced. I am re-cableing, but the cable is quite reasonably affordable.




The sound is the best.
It has broken in about a month, but it seems that the shop refunds, so I would like to purchase again.
SHIPPING METHOD
Delivered directly from Japan by Japan Post. It will take 3 to 5 business days to prepare the order for shipping. We guarantee careful packing and safe shipping.Please note that in some cases additional import or VAT charges may incur and have to be borne by the client.
1. Japanpost registered mail
Shipment by Japanpost Registered Mail (Standard). Trackable any time with tracking number. Insurance is not available. Delivery time usually is between 1-3 weeks from the date of dispatch. Some items are not eligible for Standard Shipping.
2. Qxpress Standard
Shipment by Qxpress standard service. Trackable at any time with tracking number. Registered and insured up to a value of item price and shipping fees.Delivery time is usually between 5-10 business days from the date of dispatch.
3. EMS
Shipment by Expedited Mail Service. Trackable at any time with tracking number. Registered and insured up to a value of $200 and usually delivered in 2-6 business day from the date of dispatch.

| Japanpost registered mail | Qexpress | EMS | |
|---|---|---|---|
| Shipping Method | Japanpost Registered Mail (Standard) | Standard Qexpress | EMS (Expedited Mail Service) |
| Trackable | Yes | Yes | Yes |
| Insured | N/A | Yes (Up to item price and shipping fees) | Yes (Up to $200.00) |
| Asia | 1-3 weeks | 5-10 days | 2-5 days |
| Oceania; North America; Central America and the Middle East | 2-4 weeks | 6-14 days | 2-6 days |
| Europe | 2-4 weeks | 6-16 days | 3-8 days |
| South America and Africa | 2-4 weeks | 10-18 days | 4-8 days |
NOTICE:
"According to Qoo10 guide line,overseas shipping fees will be charged to you extra if you choose Qxpress standard shipping.We recommend you to compare the total price of your purchase with EMS."
