[cmatteri]

Does anyone have any thoughts on the comfort (for extended use in an office) and effectiveness of the QC-20 vs the QC-15. It seems the QC-20 is better on both counts, despite its in ear design. One downside to the QC-20 is that he battery isn't replaceable, but I plan to use them plugged in, so they should still work even when the battery can't hold much charge.

[gesman]

Anything in-ear or over-the-ear will start hurting your ear one way or another. Around the ear + active noise cancelling is the way to go.

My choice is Bose Quiet Comfort 15.

The guy behind me talks whole day explaining low level network connectivity issues to half of the world. The guy in front of me talks spanish to someone he loves non-stop for a few hours daily.

Bose allows to handle it gracefully :)