The FCC's action will allow "for rapid deployment of new wireless technologies while protecting consumers who bought wireless microphones in good faith," Harold Feld, legal director of coalition member Public Knowledge, said in a statement. "As a result of this order, more spectrum will be available ... in the 700 MHz band for new services."

The requires wireless microphone makers to tell customers that the devices operate in television spectrum without FCC approval. These notices will "curtail the previous deceptive advertising practices by wireless microphone manufacturers," Feld said.

FCC Chairman Julius Genachowski said the commission's ban on wireless microphones in the 700MHz spectrum was a "necessary and essential action" to complete the digital TV transition.

"Our decision will accelerate the buildout of 4G wireless networks, and will prevent interference with first responders who rely on the 700 MHz Band for mission-critical communications," he said in a statement.