I had Zulus on when I was flying a turbo prop , however I moved on to a Crj 200 and they were too big to fit in my bag with all my charts without crushing them. So I got the telex 850 which have anr and they work great ! They are a little louder then the Zulus sure, but I don't have a bulky headset stuck to my head for hours on end. Makes a big difference when you have a small headset resting on your head compared to a bulky pair of DC all day. Telex 850 work great in the CRJ and cheaper too .....