Product Details : Specification: 1. all-overs notification by e-mail with image. 2. activating affectation on motion-detection breadth of multi-camera (one ~ four) 3. complete alarm.4. Video arresting filter, for analyze animate and Invalid channel. 5. arresting absent alarm. 6. Motion Detection. 7. adjustable sensitivity. 8. Automatically lock, while not any operate. 9. calendar ecology sessions, for timer snap. 10. almanac video/audio(with usb2.0 audio interface),snap shot. 11. automatic amplitude management. Stop recorder or abduction still automatically on anchorperson full. 12. abutment 4 access Video ascribe on one computer.13. abutment On accoutrement Display. Displays date and time ,or access description on video. 14. Supports chiral open/close Invalid channel, or add/delete access description. 15. Supports login and logout, by User Name and Password. Frequency2.4GHz Wireless ReceiverChannel4 channel: 2.414G, 2.432G, 2.450G, 2.468GInput4 access wireless cameras, or 1 access Video/Audio InputAntenna50 ohm SMAOutput1 Video/Audio achievement for 4 ch Video, 1 USB2.0 achievement for 4 ch.Display Rate25 fps (PAL), 30fps (NTSC)Recording Rate25 fps (PAL), 30fps (NTSC)Compression FormatMPEG4Video Resolution704x576,352x288(PAL)640x480,320x240(NTSC)Recorder MediaHDD, USB Disk, ZIP, CD-R/WRecord ModeMotion/Sensor/Schedule/ManualNetworkTCP/IPI/O Device4 Ch Hi/Low Input, 1 Ch advertisement Output