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Schools do not choose the most advanced public address systems, such as the Ethernet speaker system, which uses Internet and Ethernet cables to communicate. The special feature of the system is that Ethernet cables can support speakers for power and bandwidth. Ethernet is multipurpose, powering speakers with low voltage power, enough to power them, and Internet bandwidth to send signals back and forth. This makes them versatile and economical because you don't have to spend extra expenses on buying cables and spending on a separate Internet connection.