I recently tried a coworker's QC35s and was impressed. I decided to buy the TaoTronics TT-BH22 https://www.amazon.com/gp/product/B075CBHN9M/
(about $60; don't get tricked by the "newer model of this item" link which is quite different) -- and I think they're a fantastic value with maybe 75% of the noise cancellation performance of the $300+ name-brand product. I use them basically all day in our open office. The active noise cancellation cuts down tremendously on low-frequency noise from air handlers and distant conversations. Would recommend.
One downside is that when they're first turned on, I can faintly hear the switching power supply charging up the internal capacitors for the first few seconds. But I've been told that I have unusually good high-frequency hearing, and this basically goes away once it's charged, and is certainly not audible over music.
One downside is that when they're first turned on, I can faintly hear the switching power supply charging up the internal capacitors for the first few seconds. But I've been told that I have unusually good high-frequency hearing, and this basically goes away once it's charged, and is certainly not audible over music.