This DVR is a ideal security system for home, office, shop guard or baby care purpose, users can do their own security by easy installation. The most cost effective solution to replace commercial VCR tape recorder, which also supports stable digital video record and easy manages the recorded data. Send video to your PC through USB port and watch them on desktop/laptop monitor screen. Support schedule recording mode, motion detection mode,recycling recording method. Supports worldwide video systems including NTSC, PAL. Supports multi-channel playback, searching by time/date and recording events, images options include zoom, capture, print, backup. Display modes: 1/4 channels. MPEG4 compression format, greatly reduce HDD usage. Support remote surveillance and PTZ control through web browser support dynamic domain name. Applications: net meeting, MSN messenger, Skype, Yahoo Messenger, ICQ.