Currently on a corporate show. I ask my clients to take their cells out of their pockets and one guy says "You know, cell phones operate in a higher band than these microphones currently do. It might just be safe to leave them in your pocket with these on". I disagreed with him and still insisted he take it out or shut it off and he said he trusted me. Then I thought, he's right?! Why the hell DO we need to take that precaution then? Any thoughts?