Hyper Vision DHV-1640 series User Manual Brandname: J&S United Technology Category: DVR Total Pages: 84 Table of contents HyperVision22-1DisplayMode92-2MotiontoZoom102-3StorageSpace132-4RecordingDidoStatus143-2SearchForRecordedData183-3AudioPlayback193-4SavetoFloppy203-5BackingUpVideoFiles214-1CameraSetup254-2Ptz284-3ViewSetup304-4UserAccountManagement314-5Dido344-6AlarmNotice36