LD Systems MEI 1000 G2

I was hoping to use this as a wireless monitoring system when recording instruments, so as to get rid of the headphone cable which i would regularly walk on when getting up, which results in the headphones being stripped off my head brutally... Unfortunately, this device has a very bad noise to signal response ratio (on all channels), resulting in nearly as much background noise as original signal - useless to say that this makes it unusable for studio applications.
I tried different places in the studio to check for any interference with other gear, with the same (bad) result.
I was told that better quality requires higher price tags, too bad. I hope one day we can have latency-free wireless ear/headphones at an affordable price !