The Personal PA® 377 PRO ensures people in your facility receive direct, clear communication of your message. Offers the same great features as the PPA 377 plus the convenience of a coaxial cable and rack panel kit for professional installation. Push-button menu controls make the system easy to set up and use. With professional sound features and an operating range of up to 1000 feet, the PPA 377 PRO is ideal for large venues where superior coverage is essential. This complete turnkey solution includes four PPA Select receivers (PPA R37), each featuring seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. The system is expandable, accommodating any number of listeners. This system complies with 2010 ADA guidelines for hearing assistance and is covered by Lifetime PLUS Limited Warranty.