I am surprised that the active noice cancellation works as well as it does, given the low entry price on these. They get a little heavy after some hours but overall I am glad I purchased them.
I normally don’t wear headphones nor earbuds, but these work great. They sound very good, they are simple, and they definitely get the job done. Depending on your purpose, not having a mic shut off button might be of issue, however. Hence, my only issue is with the headset is the lack of mic on-off operation.