Noise Cancelling isn't great
My husband bought these for me to assist with my studying at home. He was sold these in store and told that this will assist to cancel out the noise of annoying native birds we have surrounding our home. They aren't effective in cancelling out any noise and if anything I feel constant pressure in my ears that I need to release by yawning. I'm sure these are great headphones but for the intended purpose they were a let down.