Swann Digital Guardian 4 Channel Digital Video Recorder MONITOR & RECORD 4 AREAS - Monitor & record up to 4 cameras located around your office, home or industrial premises. Replaces time lapse VCR and quad processor MOTION DETECTION - Set up to only record events, rather than continuous recording of still image (eg - empty room) AUDIO - Supports one camera with Audio, or separate Microphone eg. Monitor customer service transactions in retail stores Multiple search - By time, date, alarm, or event list / Event search (eg. What happened yesterday at 2pm in reception?) Zoom & Picture in Picture