I'm starting to look into getting some new IEMs, and have been wondering about ANC. I suspect it might not be much use and I should save my money? My original thought was to use in the gym to cancel out the music they play, but as I've read a little more it seems ANC isn't good at that.
However, one other potential use I might have is to wear them while out walking, however I'm a bit nervous about this as some of the country lanes I walk on are quite narrow with tall hedges, and I like to be able to hear the cars and vans approaching.
Does anybody here use ANC with ambient pass through while out walking or runnig? how safe do you feel vs no earphones/IEMs?