As a monitor engineer, I often use a wireless beltpack like the band uses to get the same sound. Sometimes, I need something , just to get the output from a desk to my own ears, like a matrix output with AFL and talkback from stage always on.
These units are great for that.
I love it.
Easy to use and good sound.
Battery and psu.
Mono and stereo.
2 normal XLR connectors , so no exotic cables needed.
Just simple and great.