Thanks. Handy to know.
I'm still on my first pair of noise cancelling headphones. The "cheap"[est] Bose ones (^around that same price). They do a fair job of noise cancelling [~ though not great enough to immunise me from SensoryProcessingDisorder triggers]. But I have nothing else to compare to. Have been considering making a big investment for their more expensive ones that I've seen get great reviews.