... 1)Support Mobile phone,alarm email&DDNS 2)Support 4CH playback 3)Backup mode:USB2.0 4)Battery:500mah ... inputs, 1CH monitor output, 1CH VGA output(1280*1024)♦4CH audio inputs, 1CH audio output♦High quality image, brightness, ... SearchingDate & time search, event list search, urgent searchPlayback ModesSupport 4CH playback simultaneouslyNetwork ProtocolsTCP/IP, DHCP&PPPOE & DDNSNetwork Port10M/100M ...