Quick question

[Ferrera]

I'll be buying the DT990's soon and a Zalman clip on mic, the question is, since the DT990's don't isolate any sound, will the mic pick up any sound coming from the headphones?

Thanks.

[MayflowerElectronics]

Nope, not unless you are listening and deafening levels. 

[Ferrera]

Nope, not unless you are listening and deafening levels. 

Right on, thanks.