I have used many wireless systems before and the hollyland Solidcom c1 pro is by far the best. I also own the original c1 system and can’t fault that either. But the upgraded system with the noise cancellation has proven to work very well in noise conference environments.
I use them indoors for large conference events where the range is sometimes 100m and they have not had any dropouts. Recently tested in a 76m long room behind an LED wall and no dropouts at all.
The ease of use in being able to lower and lift the microphone to mute and unsure means you don’t accidentally leave the system on when not taking to others.
I have used other expensive systems but at this price point and ease of setup and use I would say there is nothing out there to compare!