Priced cheap enough to replace either way! The anc on these will do just find in a noisy office or maybe even sitting outside at the park, but Im not quite sure in a really noisy atmosphere it will completely drown out the background noise. Imagine hearing footsteps on a nice DAC/amp with 600ohm headphones in 2. Update 1: Ive been trying to return this item but Amazon wont help. I have owned them for a bunch of months and they are my go to pair for every day living. The you tube directions for setting up the camera are helpful. This will probably be the last headset I buy. It was hard to get the cover on. It fits but its rather tight and you have to forcefully push a bike with wide tires into the slot2. The good:-The sound quality is what you would expect, good.