[eXpander]

hey guys, i'm buying some new headphones and i need something that sounds really good, my budget is 50 dollars. i also have fiiO E5 headphone amp if that helps at all. i want headphones i can use on my way to class, at the gym, at work. preferably headphones, i don't rly like ear buds too much
 
my music of choise is progressive, trance, house, and DnB thanks in advanced guys