The Innovation Wireless PA Speakers are perfect for hearing crisp, clear Voice Communication and Tone Signaling, in all School & Facility applications. Requiring only standard electric, these Wireless Speakers are the ideal solution for eliminating expensive/costly wiring, or as a replacement to existing failed hard wired speakers. Accurately controlled and wirelessly coordinated using the PA Transmitter/software, announcements, class change and break notifications are easily generated, providing enhanced audibility, and reliability.