Very disappointed by Sennheiser which has always been very good.
But not this time, I'm not the first to complain but yes, a lot of extraneous noise, and above all a lot of dropout.
I am a professional musician and I needed a system to go on tour.
I had to simply give up and start working with monitors on stage again.
I'll invest in equipment that does not sound like a cheap walkie talkie toy for kids.
Useless, do not buy this product!