Features:   > 1 channel video and audio inputs > H.264 video compression and JPEG image capture > Full channel@D1(4CIF) realtime encording > 3D intelligent positioning with Dahua PTZ dome camera > Multiple network monitoring: Web viewer, CMS(DSS/PSS) & DMSS  Technical Specifications:  > Main Processor: Dual-core embedded processor > Operating System: Embedded LINUX > Video Input: 1 channel > Output: 1 TV output, BNC > Standards: PAL(625Line, 50f/s), NTSC > Audio Input: 1 channel > Output: 1 channel > Two-way Talk: 1 channel Input, 1 channel Output > Display Resolution:: 1280×1024, 1280×720, 1024×768, 800×600 > Display Split 1  > Privacy Masking: 4 rectangular zones (each camera) > Video/Audio Compression: H.264 / G.711 > Resolution: D1/CIF/QCIF/VGA/QVGA > Record Rate Mainstream: D1/BCIF/CIF/QCIF(1~25/30fps) > Extra stream: D1/BCIF/CIF/QCIF > Digital Watermark: Support > Trigger Events: Recording, PTZ, Tour, Alarm, Video Push, Email, FTP, Buzzer & Screen tips > Video Detection: Motion Detection, MD Zones: 396(22×18), Video Loss & Camera Blank > Alarm Input: 4 channel > Relay Output: 2 channel > Search Mode: Time/Date, Alarm, Motion Detection & Exact search (accurate to second) > Playback Functions: Play, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom > Memory Slot: SD, Max 32GB > Ethernet: RJ-45 (10/100Base-T) > Network Functions: TCP/IP, PPPOE,DDNS, FTP, IP Filter, DNS, SMTP, NTP, DHCP > USB: 1 Port > RS485: PTZ control > Power Supply:DC12V / 3A > Power Consumption: <5W > Working Environment:-30°C ~+50°C / 10%~90% / 86kpa~106kpa > Dimension(W×D×H) 162mm ×136mm × 30mm > Weight 1.0Kg