for those of you that live -lrb- d -rrb- in apartments\/dorms , you know how noisy thing can be from time to time . after get feed up with my roommate and surround neighbor with they loud music , I speak with a friend of mine about some headphone for under $ 50 that do a good job block out background noise . he direct I to these Sony 's . consider the amazing deal I get these through Amazon , I be more than pleased . I take off the rubber fitting around the speaker and notice how small the speaker be . I have to say , these headphone do a excellent job ! three different rubber fitting size attach to the ear bud to make a seal , which then keep the background noise , out . it be also amazing the amount of bass these produce be amazing consider the size . they produce extremely good , clear sound ... as oppose to the .5 watt speaker in my lcd monitor . the case include be great ... I use these when walk to class , and then store they in the hard plastic case to protect they . I would not however recommend use they for you headset while exercise ... they seem a tad bit fragile where the connection of the wire meet the speaker . the extension cord be extremely handy to . if you be try to save some $ , and want some clear sound with a little bass , these should defiantly be consider .