the t.bone IEM D2.4

I’m a guitar player. I was looking for an affordable wireless system for my in ear monitoring and I found this one. I managed to try it properly today in the rehearsals room with my band.
It looks very good and it has a lot of interesting features, so at first I really thought I got a really great product for a good price.
After using it for 6 hours straight (with a few breaks here and there) I have to say that the sound quality is not good enough (to me at least). Everything sounds a bit too flat and weak, and too many details get lost. The lack of push and dynamics makes it quite complicated to focus on the actual performance. It just sounds too messy and not clear enough, even with a very good set of in ear headphones. The attack is weird and unrealistic, very different from what Is actually going on with the amp.
I don’t think it’s too bad, but i expected something a bit nicer.