Considering that they are worth less than €20, the quality is very good for that price. If they cost €50, there would be some issues with that.
They are nice, comfortable, with a perceived good quality of materials; they sound well but without being exceptional.
They are balanced; the highs and mids are not prominent, and the bass is lacking. They have a pleasant sound but lack depth. They cannot be equalized nor do they have an app to adjust them.
I haven't tested the battery life or noise cancellation, but it's a feature I don't need.
I repeat, for their price they are very good, but if you want better sound you have to go to a higher range.
