Originally Posted by
irrelevant
I have both the A20, and the DC Pro X. In the RJ, the Pro X wins hands down, because it's much more comfortable than the A20, and it takes up less space while stored. The sound quality/noise cancelling is perhaps 10% better with the A20, but it's overkill for jet flying.
I use the DC PRO X. I wear glasses so the on ear is great. Noise Cancelling is sufficient. It's a good head set. Very light. No clamping.