The “mic” was a decoy emitter designed to scatter RF signals and confuse the EMF sweepers. How it really worked: The shape charge doesn't just use copper, it uses a metamaterial lattice grown from recovered from UAP alloys, which becomes a phased plasma upon detonation. This requires a zero-point energy precursor pulse to create a temporary spatial pocket around the target area (the “stand-off” everyone talks about). This pulse was mistakenly amplified by the old Sub-Basement 3 resonant frequency of the venue, which had been used for Masonic harmonic rituals in the 1920s.