... CAMERA Support multilingual operation system Support 1/2/4 ch 4ch H.264 Network Standalone CCTV DVR Digital Video Recorder ... 200fps(PAL), 240fps(NTSC)Audio input-8dB~22k,RCAx4(4ch), RCAx4(4ch)Audio output-8dB~92dB,RCAx1Audio decodeADPCMAlarm inputInput low level ... setting normal open or normal close, 8ch inputAlarm output1ch output(4CH DVR) 2ch output(8CH DVR)Recording modeManual recording, timing ...