For mobile P.A systems they work best for informal gatherings and laid down events.However for corporate events, it is always wise to go the professional way by maximizing the sound quality and control of the sound.
The pitfalls of mobile P.A’s is the unreliability and the sound is just basic and simple.No variable tones or differences when different people speak.The brands are quite diverse no specifics, however just look for this capabilities to get the best :smile
Battery and power plug ins for the mains capability
12v rechargeable battery.
863 -865 MHz frequency range.