... control Remote Configuration, Firmware Upgrade and Event (Alarm, Motion) Notification Full duplex two way audio transmissionItemsSpecificationsModel NameD5604Compression StandardH.264ResolutionPreview resolution704 x 576 ... Voltage,Open or ClosedAlarm ModeSensor Input, Motion Detection, Video Loss, Full Disk Space.NetworkEthernet (10/100M )LANWAN and ADSLControl WayUSB2.0 ...