This headset is really awesome! After wearing it for about 40 minutes, my ears didn’t feel quite uncomfortable, but it’s a little bit heavy.
And the sound quality is really great! The battery life is about 30 hours.
As for compatibility, my phone is Apple X, and no compatibility issues were found.
The PX7 is very interesting, you can plug in a cable or use a wireless Bluetooth connection, you can connect 2 devices at the same time, but you can only hear the music of one device when the two devices are playing at the same time.
Jason 
Alex Lux 
Gaosi Tai