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Hey guys, i'm looking for a headphone for walking in the street, riding byclcle, in the subway, and at my work while programming
 
For you in terms of build quality, comfort for 2 o 3 hours continuous listening, sound, isolation, etc
Which one is the best
 
Thanks!

 

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i've discarded the momentum because i can't find anywhere in my country
 
so now i'm between the amperior sennheiser/hd25 II and the T51p