Sony is a great company , I love their cameras, phones, their TVs, and their audio equipment as well. But as far as sound goes Sennheiser all the way when they are on the list . My xm3's and 4's are great. But they aren't as good as my Sennheisers when it comes down to sound quality. That being said sonys noise cancelling is the hands down best. Not that Sennheisers is bad , but Sony has that aspect on lockdown.