Very good product
The Sony WF-1000XM4 black headphones are very good sounding headphones.
The sound is clear, the bass deep, and of course everything is adjustable on the application.
As for the microphones, don't expect any miracles.
When I first started using it, I had access to a very long battery life, but this has recently deteriorated considerably.
A full charge takes less than 30 minutes to empty, whereas before it could easily last several hours.
However, I assume that this is a problem with my product in particular and not with the product in general (to be verified as other people on forums have had this problem with a specific version of the software (which is not my case)).
For my part, I'm going to contact the after-sales service to make use of the warranty.
