As a former DiskJockey, I am very critical of the quality of sound.
As a Manager, I have many and sometimes long conference calls throughout the week.
Sound :
By default there is too much BAS in these headphones, but this can be corrected with the APP (by lowering the LOW frequencies).
Because I am a bit older, I had to turn up the HIGH frequencies a bit (but below 50 this is usually not necessary).
The sound quality is also sublime. Tight and Clear. No peaks in the MIDDLE frequencies.
Conference Calls:
These headphones are also recommended for conference calls:
There are 2 microphones (1 in each shell) which increases the voice pickup sensitivity.
The shells do not press too hard on the ear (although I had to bend the bracket a bit first, as if the headphones had been in use for a year), but the well-known fatigue (warm ears) no longer occurs after that.
The intelligibility of callers is great, thanks to the very good seal over the ears and the dampening effect of the softly springy edge.
General :
The APP is easy to operate, but unnecessary if you could also operate the equalizer from the buttons on the shells.
Price:
A superior product for relatively little money
Beaver
QuaDraad