hd300 in-ear headphone

[gbc_14]

hi. i am considering buying an in-ear headphone with a volume control. my problem is, not all mp3's nor wma's have the same volume. and sometimes, the song playing cannot be heard because of the reduced volume while at other times, the volume can be so deafiningly loud. that's the reason why i'm considering a new head set with a volume control.

my question is, what must be the specs of the headphone? i.e. impedance, frequency, etc?

better yet, is there a remote control that is compatible with the hd300?

thanks. :)