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[Video, The Verge] Hear how the best ANC headphones handle real world and lab tests
(www.youtube.com)
This is a most excellent place for technology news and articles.
I bought XM4s. Was not happy.
I've had the XM3 for many years now and think they're great. No death from head sweat like the apples, too.
The noise cancelling barely worked I throught so didn't really see what the point was.
Those were broken or you weren't using them properly. I assure you, much as this video reported, the noise cancelling works quite well.
...and has been since the first generation. That's what made them a best selling item from scratch. I remember the first one was commented at the time "a close competitor" to the Bose, but by now they stand their own ground.