... screen2, Support re-broadcast from network radio3, Compatible with various streaming media network protocols (TCP/IP,RTP,RTSP, ... devices6, Available to individual zone, IP, volume control for network terminals, devices status are displayed clearly7, System automatic switch8 ... )MIC input1CH MIC input (10mv p-p, 10K)USB interface4pcsSD card interface1pcsPowerAC 220V±10% 50-60HzTiming functionTiming power ...