Comment by 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.