So I'm completely new to this and have done a bit of research, but I don't know. So I always bought those cheap headphones you could get for around 10/15 euro, but I want something a bit better. I'm searching for some closed headphones of around 40 euro or less, 40 is maximum, so around 50$. Doesn't have to have a lot of bass, preferably not. One that does not require amp and a removable cord would be nice.
On the guide I saw the Sony MDR-V6, but that one goes a bit off budget, except if they are really a lot better than the others like the Sony MDR-XB500. Another I saw was the Sennheiser HD202-II, I first want to look at some others, though.