Claiming public-safety concerns, the Federal Communications Commission announced a ban on all wireless microphones operating in the 700 MHz band after June 12. The transition to digital television in 2009 opened up the frequencies between 608 and 820 MHz, the range employed by many wireless microphones used by churches, clubs, and entertainment venues. The new rule renders illegal these establishments’ use of their current wireless equipment. The FCC has assigned the 700 MHz band to police and fire departments and other emergency services.