I tested my vocal shield today a bit, This is is far from a scientific test just my ears. I bought the Neewer one that is 65.00 Not the large one but not the real small on either. I was not expecting much and I think that is about what I got. Frankly I think there are better ways to design these things but what do I know. It may calm the reflections down a touch, I am going to use it because I don't see how it can hurt but I am working on some other things like the angle of mic placement, gain staging, proper distance from mic when singing along with good old vocal technique etc that are probably going to net me greater improvements in my vocal tracks than this shield. If I had it to do over again today I would not buy it. The bigger ones may do a better job but it seems to me that unless you are enclosing the entire mic and I mean sides, top, and bottom, you really are not cutting down on much of anything noticeable. I will be doing more experimenting over the next week and update if I find any different results.