I recorded both of these with my Macbook, using no additional processing, inside of a loud coffee shop. Here's one in wireless mode:

And here's another using the wire:

As you can hear, Mic performance is not amazing. The mic system is built into the ear cups, with no boom or adjustment of any kind, so it's hard to point the microphone right at your voice. The background noise cancellation is nice...but everything else is...less than nice.

For my full review of this headset, click here!