Details:
Sound> well, also via Bluetooth
Operation> satisfactory because not too intuitive
Compatibility> there is no need for adapter for power connection
Connections> me pers. Missing the rear USB connector for wiring
Handsfree> good voice quality
Bluetooth Modules> can only manage a mobile / Profile
Note: The Micro was sometimes not found and I almost overlooked it.
You can find it in the case of the front bezel.