I was talking about when listening to music rather than general isolation. ANC significantly helps reduce the volume of music you need. Also, once I set a volume with ANC on, when walking about, I enable transparency without raising the volume as I know it is at the right level, as against trying to cancel some noise with more noise.But no certification is there for ANC. Not suitable for industrial applications. Unlike with ear defenders.
Do Noise Cancelling Headphones Protect Your Hearing? - NoisyWorld
This article looks at when and how active noise cancelling headphones can help to protect your hearing and when they are not suitable.noisyworld.org
and
Noise Cancelling Headphones vs Earmuffs: Electronics or Big Ear Cups? - NoisyWorld
In this post I am comparing two of my favorite noise reduction tools: active noise cancelling headphones and earmuffs. The results of an everyday noise reduction test are also included. Noise cancelling headphones (ANC headphones) have become all the rage in recent years, and for good reasons...
I had this and also it's predecesor. For some reason, Sony never got multipoint connectivity right and it used to be a proper mess when using it with both a phone and a tablet. Also the latency was horrible, the microphone not so great and the FM reception was finicky based on the earphones used. It served its purpose for a time but it is not something I would go back to ever.
