the delivery of my airphone went well and it's a cool

The best phone-talking headphones I 've ever tried. I never thought that Bluetooth would beat a RJ9 wired headphones, but I have to say that these have far exceeded my expectations. Very good quality Audio in reception (headset) and excellent clarity and intelligibility of the word with the microphone. I have used them for a day and they are comfortable, their sound is perfect and the battery life for the moment can hold without problems with the charge that comes from the factory. Hopefully they will last for a long time because it has been an excellent purchase. My interlocutors listen to me perfectly, they hardly notice a difference between the wired headset and these headphones (they notice it, but little). Works remarkably well with a 8851 IP Cisco phone and the headset controls work on the phone. The volume of the headset and the phone is synchronized by appearing on the screen the level adjusted on the headset controls, as on a Smartphone. Very happy.

It's okay, I 'd like it to be bigger for America people, the quality is very good

Good sound quality, nice bass!
The noise cancellation is really really strong! Muted completely the music that I was listening to while speaking and testing the headset.
Fits nice on the head, but could be a little more comfortable on the ear, but I have some big ones too, so... 😂
It's a nice product overall, like it.

The sound is okay, but the microphone is not great. Customers complained that they can't hear me correctly and I had to speak very loudly in order for them to hearing me. Not to mention that the microphone length is very small and it's nowhere near to reach the mouth.