In the box is the rack mount kit and everything else you need to get started. The case it comes in is quite nice too.
So, how does it fare?
Well, the sound is pretty good. To get the best of any IEM you need compression. Going straight to your ears without sounds quite distorted but with a decent compressor it's good. My LD MEI 100 sits in a rack with a reverb unit and compressor so that allows me to get exactly what I need, loud and clear. The buds I've only used a couple of times as I've a pair of custom IEM monitors but they are ok.
The kit feels quite solid, simple to use and does what you expect and battery life is as advertised.
However, the combi inputs are quite probably the worst items I have ever purchased. They are not fit for purpose. One of the xlr inputs doesn't lock, the cable can be pulled out but fortunately xlr connectors provide sufficient friction and remain in place. But the 1/4" part of the combi inputs are awful. In a rack, in the horizontal position, plug a 1/4" jack in, let go and watch them pop back out all by themselves. Seriously. Due to the hassle with shipping it back, I've gaffa taped them in tight as otherwise it's fine.