First-second use, the microphone broke, during the race for which I bought them, they short-circuited (in the classic Athens marathon. In the marathon! at the 3rd-4th km! they short-circuited!), after a couple more uses, the cable of one earphone lost contact and they became monophonic, and the next time they died completely. That's it.

Application very good PERFECT basically, it has different Pads inside even donkey ears to have. They seal perfectly, you don't hear anything outside, which allows you, even at the gym, to be next to the speaker blasting meaningless beats, to hear at a low volume, luckily because the sound is a bit rotten.... basically, they have the classic rotten high-mid frequency emphasized that pierces your eardrum, the highs are bad but the sound is great from the mids and below! Overall, for metal, they blow your ears off if you turn them up loud, they manage somehow at low volume (with EQ always).

If you get them for 10 or maybe 12 euros, okay, they are good for workouts, etc. but for 17-25 euros, which I see some people selling them for, no, not at all. They are cheap headphones with a very good fit, but nothing more.

The headphones are incredible for their price. Much superior in sound and bass compared to much more expensive headphones. They are perfect for running, which is why I bought them. On 02/12/19, I would like to add that the headphones have held up until now and I ordered two more today for my family.!!!

Very good performance. 4 stars because it does not have spare ear pads for different ear sizes and it does not have a button for ffwd. Definitely value for money.