... intercom, broadcasting, monitoring, remote control IP video intercom paging microphone Enabled by TCP/IP technology, Huanyutong IP Network Intercom ... from terminals. Monitoring and surveilling all the terminals.With 2 short-circuit output interfaces, can control some ... 44.1kHz, 16bitTransmit Rate 16kbps-192kbpsDisplay Screen7 inch LCD color touch screenInterfaceAudio input/output, 2 short-circuit, SD ...