The +++ this product:
_a powerful, clean sound on the amp (more on that another amp of recently tested brand)
_a good audio reception (I have not tested 100 meters but it works very well from one end to the other of a large room)
Multifunction _l'ampli (excellent radio reception, with USB front panel controls, easy Bluetooth connection, a comprehensive amp of this perspective is the strong point)
The pros:
_the well finished design of all
_the mobility with foldable handle and wheels but not paratransit for microphones or receiver
The -:
_The Sound quality microphones, big perception of breath but still we hear voices with very low distortion, my students have really enjoyed it. Keep the microphone in the mouth for good sound.
The microphones operate with a 9V battery, the rest on jack. It is therefore both taken unless you running on battery power amp that gives a little margin. As the sound drops with battery loss, I prefer to put it on jack. The receiver then gives more power.
In short, a mobile set of good quality that fits the bill with my students in the classroom and which can also be the case outside because the sound is powerful and stays clean even in passing in max mode. Perfect for a speaker use even in a large room.