Jammin to the "call to prayer"

Mobile Blocker is a suitcase device that jams cell phones.

"These extraordinary technological devices were originally created,

designed and perfected for the King of Jordon because he was upset

about the disruption and disturbances caused by mobile phones at 

mosques during prayer. The MobileBlockers are now used silently

and safely in Mosques all over the world."

I wonder if there is room in there for caesium-137 ?