Myself and both of my guitarists use wirelesses. I use some old Shure that I came into through an old band mate, and they both use the Line 6 G30. I'm at my last nerve with their systems, the batteries constantly come loose and/or fall out of the bug so they always cut out. The thing is we move around a lot when we play... Can anyone suggest a means of fixing the problem or a better wireless for them? Mine serves just fine for now