Pretty sure they're only noise isolating, like any other in ear pair of earphones are, they've not advertised any sort of actual noise cancelling functionality and until I got foam tips for them, they didn't even isolate very well for me, certainly weren't cancelling any noise actively. You mention the cable being nice however on the move it's a nightmare for noise, every slight touch of the cable generates a horrible noise from the braiding, I think they'd have been better off just plastic shrouded.
As I mentioned before though, for me, the foam tips transformed them - before that, they were pretty much destined for the bin, now I find them decent enough to use as a day to day pair, though still not matching up to my super.fi5. I'd highly recommend people get a set, they're only a couple of quid on Amazon and really improved the noise isolation and sound quality. These fit perfectly and come as 6 pairs so plenty of replacements -
https://www.amazon.co.uk/gp/product/B01BHD9A0Y/