"1.huchnomovtsi separate, mounted in the body do not contain some kind of radio equipment (transmitter and receiver): art.pc 2369 foo-ceiling speaker 6 inches 6 w - 50sht., art.sc-615m eu horn loudspeaker paging - 50sht ., art. pe-304 suspension speaker 30w 2way -30sht .; art. bs-634t wall speaker -