pro : - around the head design prevent `` headphone hair '' . - okay for casual listen where volume level be low . con : - sound be below par , equivalent to cheapie headphone . distortion at moderate bass and volume level . - noise canceling be mostly non-existent . it drown out about 50 % of the hum of a loud computer fan . do not noise-cancel anything else . - the noise cancel `` stick '' be huge . it measure 5 `` x0 .75 '' -lrb- lxw -rrb- . - the ear hook start to irritate after prolonged use . comment : if you be look for quality sound and noise canceling , move along , these headphone be not for you . they be okay for casual , at the office-type , low-volume , without the worry of headphone hair listen .