They are perhaps the best performing headphones (of this price) that I have bought so far. I am not an audio expert, but I listened to a music piece with all the headphones I have, and these impressed me with the sense of clarity in the sound. The headphones are very lightweight and I can comfortably wear them in my ears for quite a while; they also fit well and do not fall out even if I move my head quickly from side to side. The device that adjusts the opening between the two cables is also very practical, as well as the necessary "L" shape in the 3.5mm jack.

What I don't like:

1. I would prefer the larger size of the silicone they provide to be a bit bigger to give me a better sense of isolation from ambient sound, even when I am not listening to anything.

2. The cable should be a bit shorter because on the road I have to wrap it a bit in my pocket so it doesn't hang too much.

3. Finally, the most important. The sliding volume control is a special choice, but I don't find it practical. It doesn't offer precision in adjustment (I don't mean that it isn't good) and mainly immediacy, resulting in me having it permanently at maximum and controlling the volume from the phone's buttons. Essentially, it's like it doesn't exist.

4. The microphone is not as sensitive as those of other headphones I have (I write this for good) but still, I would like it to cut out more of the ambient sound. For example, I have these headphones connected to my phone and I am in a space where the TV is playing (normal volume) or there is a steam iron in operation. I call my phone from another phone, answer, and I can hear from the other phone what ambient sound the headphones are picking up. I would expect them to cut out more. However, I don't want to be excessive. I have paid for headphones three times the price of these from a well-known company, with noise cancellation in the microphone, and in the above conditions, I have been asked to change locations...

5. The cable gets a bit tangled, no matter how well I wrap it, but from my experience, if it is not braided, it is something inevitable.

They were purchased exclusively for watching videos and listening to music from mobile and PC.
Tremendous performance of high frequencies, logical and tireless bass. Overall, very balanced, clear, sweet, and pleasant reproduction, much better than the equally good 10 euro Aiwa headphones that I have evaluated in the past. They sound as loud as they should, depending on the source, and do not distort at high volumes during the movie. They have a simple sliding control for volume, which time will tell how long it will last.
Good and long cable that will only get tangled if you wrap it in your pocket.
Their other great advantage is the very proper construction of the main body of the headphones, which does not bother when, for example, you are lying down and pressing your ear against the pillow.
They fit well in the depth of the ear with good-textured latex sponges. Proper placement will satisfactorily isolate from the outside world.
One or two calls I made, they sounded good.
In terms of wired headphones, they are the best I have heard so far.
There is no reason to spend more. Nice sound and fit.