Hello to all potential buyers. I'll start with the build quality, which is all metal, half good quality rope cable, and the other half plastic after the splitter for left and right earphones.
The sound quality is very good, especially for classical music, it feels like you're listening to different pieces. My previous experience was with Sony MDR XB50AP and Beats by Dre (the worst), as well as other Sony headphones under 20€... check Reddit, guys... don't just rely on 50 good reviews from 50 people who will never admit they made a bad purchase.
Now, the negatives. I PAID 70€ TO GET A TEASER IN MY EAR. That's it. So, when I charge my phone, after a minute, trztrztrz. Even when I connected them to a monitor, it still hit me hard (the strongest hit so far). It's really annoying, I'm not kidding. The official response from 1more says that they don't recommend using the headphones while charging your phone because it affects both the headphones and the phone. I hope this helps.
Update 17/2/2021: I'm mentioning that the left earphone broke. Waiting for a response from customer service.
Update: They were replaced and I received them today (with free shipping) on 11/3/2021. I had sent them to the authorized service center on 24/2/21. The only negative is that the packaging was a bit damaged on the right side. Unfortunately, I also heard from the responsible person that you shouldn't use the headphones while charging your phone because it acts as an antenna (a more serious reason than what 1more service Europe stated). If the same issue with the "teaser" continues, I'll tell you, you should hope to forget about listening to music while charging, otherwise, it's not possible, guys, it's annoying... The last thing I want to emphasize is that the warranty period is not mentioned anywhere. I was lucky, mine broke in around 2 months. You might not be as lucky.
12/3/21: The story doesn't end, XD. When I talk on a call using a mobile network, not online calls, if I shout loudly or abruptly, it makes a loud crackling sound (shhhhh) and we both hear it. Be careful with your purchases.
To summarize:
- Poor quality internal cable.
- No mention of the warranty period.
- Very poor "customer service" from 1more EU service.
- Because the drivers are large, if you come from smaller ones, your ear will open a bit... yes, I can feel that 1mm, don't get upset.
- Tremendous sound for classical music... otherwise... high highs. (Yes, those who come from 20€ headphones will be amazed)
- Nice packaging for storage and transportation.
- Volume, playback, and pause control through buttons

Summary: Very good sound quality, 9/10 noise isolation, good bass!!!, very poor cable quality, headphone material fades, I believe they are not worth their price (90€) but somewhere around 45€ - 50€ would be a reasonable price relative to their durability.

In detail {daily, but careful use / no contact with water / no contact with extreme cold or heat / use during physical exercise}:

I bought them on 09/01/2020 (for 90€). 11 months later, I believe I have a complete picture of their pros and cons. The sound is wonderful with balanced bass, they have decent noise isolation, and if the list ended there, I would buy them again and highly recommend them. Unfortunately, the problem lies in the construction quality of the headphones. The color of the "rose gold" part changed to something I would call dull "gold" within three months. Additionally, the circular black part fades quite easily with any pressure applied (in reality, the material is not black but has a metallic color and a thin layer of black coating on the outside, which reveals the metallic color of the material when scratched). And the real problems start with the cable. After approximately 6 months, it starts tangling, loses its initial flexibility, and develops cracks in some areas as a result. While initially these cracks don't have an immediate impact, over time they transfer to the internal cable (the cable has a synthetic braided casing, and the cracking of the casing initially protects the cable, but over time it becomes evident that the cracks also affect the cable, which I assume is a flaw in the synthetic material). As a result, there are parasites in the headphones during audio playback, not permanently, only when the existing cracks are folded, so if someone, for example, exercises outdoors, it becomes unbearable. However, the sound remains crystal clear. Additionally, the plastic part that connects the cable to the base of the plug detached a week ago (including a picture). One issue I noticed is that in the right earphone, there is a faint sound/interference when playing music (similar to the sound when you touch the plug with your finger on speakers, but very faint), which, however, is undetectable at a moderate volume. This is purely my opinion, but in the span of 11 months, the headphones are not worth 90€, 45€ would be a good price considering they are disposable. Of course, for someone who only wants them for gaming or professional use in indoor spaces such as an office, studio, etc., they are suitable, and I believe they will maintain their quality for 2x - 3x the duration of the cable and casing. But for my case, with daily use and outdoor use, I would recommend another brand, or the cheaper model from the same brand. The company has invested in sound quality but not in construction materials.

Due to the cost of acquisition, forgive me for nitpicking, as I will mention even the slightest disadvantages. For the headphones, I had only heard rave reviews, so I decided to move away from the €40 headphones and go for these. They satisfied me to a great extent, but they didn't reach perfection for me and let me explain why:

Pros: There is no need to mention the reproduction of each frequency separately, as the triple drivers are completely neutral and reproduce everything with incredible clarity and capability. I would almost call them studio quality, with no emphasis anywhere. It proves that if you have exceptional drivers and a little willingness to play with the EQ, you can tailor them to your liking. If you are looking for a v-shaped sound, you won't find it here. Additionally, the headphones scream quality: luxurious packaging with everything you could want inside, the headphones themselves exude tremendous solidity when held, and their materials seem top-notch. Give them a little time and a good FLAC file, and you will hear bass and treble come alive without overwhelming your head, piano or classical music like you've never heard before, and crystal-clear vocals. They also stand out, like all headphones with multiple drivers, in terms of dynamic range: simultaneously powerful bass and treble along with high-pitched vocals that not only do not scare them, but also show their teeth against the competition. They also work very well as hands-free and the buttons have perfect feedback. Finally, they isolate external sound quite well, especially if the source is far away (I couldn't hear them in cars on a highway at 100m, but I could hear nearby sounds normally).

Cons: They require very high-quality files to justify their cost, unfortunately. In the most common MP3/192 or 224kbps, they are practically equivalent to a good budget earphone. In MP3/320kbps files, you do feel this superior clarity, but they do not reproduce music better than good headphones in the €30-40 range. They only need FLAC or WAV to understand what they have to offer. They are also heavy for in-ear use and create difficulties during running/walking. I was also put off by the fact that the cable is very thin, so you have to be careful with it, and they do not have an L-shaped connector to avoid any accidental breakage. However, the most significant drawback by far is that I found them to be very quiet. No matter how high-quality an earphone is, you need the corresponding volume to enjoy it, and it is really a shame that with such quality, they lack volume.

Overall: If you find them for €60-70, which is their cost in many foreign countries, they are unbeatable, and you should buy them without hesitation. At €100-110, which is the average price in Greece (I got them somewhere in the middle - €85), you should probably consider other top companies in the field like RHA, Shure, etc., or settle for a good soundmagic, Sennheiser, etc., which offer 80% of the capabilities at half the cost.

I have been searching for good headphones for the iPhone XR for a long time. After a lot of research on Bluetooth headphones and comparisons, I wanted to replace the PowerBeats 3. I decided to sacrifice the freedom of Bluetooth for better sound quality. I do not regret it.

I ended up with these wired headphones that take advantage of ALL the music capabilities of the iPhone. AAC codec (personally, I listen to my music from music files of subscription music services, Apple Music, Spotify, etc.). You hear the songs as if you are listening to them for the first time, the lows, mids, and highs are amazing, the bass is exceptional when finding the right ear tip (a wide range of options included in the package), the sound isolation is also amazing when the right silicone size is chosen.

The cable seems very durable, the buttons are responsive and have a nice feel, the calls are crystal clear. The volume is incredible, up to the maximum, it is very loud! The sound does not distort when increasing the volume.

The packaging is very well thought out, a nice leather carrying case, not cheap plastic and nylon. You don't throw anything away.

I highly recommend them for music lovers who want to make the most of their iPhone, I always mention the iPhone because they have a lightning jack, which means that the headphones are designed for use with Apple devices (iPhone, iPod, iPad).

Also, when you connect them for the first time, it prompts you to download their app, which gives you the ability to update the headphones' firmware, an excellent player/equalizer if the music files are transferred from a computer to the device. The app also has a tool for proper burn-in, which "breaks in" the headphones correctly and not just through regular use. When the burn-in is complete, which takes MANY hours, the sound is unbeatable! I wouldn't trade them for anything!! I am considering buying a second pair in case they stop being available, so I have a backup for when I break or lose the first ones. I hope I helped.