zlacker

It can also work the other way- if you need budget noise isolation- get foam earplugs, and over ear headphones, turn the music up while simultaneously not hearing anything but it. Saved my hearing while riding motorcycles. Cheap helmet speakers sound pretty good with the volume cranked up and ear protection in- while it blocks out the dangerous wind noise.

>>yonagu+(OP)
Good point, though that's probably less ideal for an office setting, where people can hear your cranked-up volume.