I'm almost completely ignorant on the matter.
I have used since 2016 the Plantronics BackBeat PRO and I found the noise cancelling very good but it does not remove the noise of the train brakes when it arrives at the station, the same for the metro.
So I'm looking for a headset with better noise canceling that makes me feel comfortable with everything I want to hear (e.g. online course speech, music, etc).
I don't know how to properly search the headphone with such characteristics, because often is expressed with one of these forms:
- 31 (or other number)
Can you kindly suggest me how to find them?
Do you know of headphones like this that you have tried in critical conditions?
Someone know the noise-cancelling value for this headset?*