... Mobile monitoring (3G), Iphone, Blackberry, Symbian Product SpecificationsModelDVR7504SystemMain ProcessorHigh performance embedded microprocessorOperating SystemEmbedded LINUXSystem ResourcesPentaplex function: live, recording, playback, backup & ... four-sided zones for privacy masking for each cameraOSDCamera title, time, video loss, camera lock, motion detection, recordingRecordingVideo/Audio ...