Valcom Noise Sensing Volume Control

* Valcom Noise Sensing Volume Control* 1 3 6 9 And 24 (expandable With V2925a In 24 Zone Increments For Up To 96) Zone Page Control Units Available.* Oneway All Call To All Speakers Available.* Volume Controls And Amplifiers In Each Speaker.* No High Power Amplifier Required.* Standard Cat 3 5 5e Twisted Pair Cable (typically 22 Or 24 Awg) Is Used For Speakers.* Existing Twisted Pair House Calbes / Feed Cables May Be Used Without Introducing Crosstalk.* See Multipath Information For Systems Up To 360 Zones.* Brand: Valcom