Different devices support different functions. Preview interface only shows the functions supported.
Light control:setup on/off,brightness,color temperature for light control device
Screenshot:snapshot current preview image
Recording: record current preview video
Full screen:tap button and switch to landscape viewing
Calendar:choose playback time to show all recording files wanted
Remote playback: device must to be inserted TF card.
Two way talk:press the button and talk for a long time
Installation mode:swith to wall installation and ceiling installation mode
Display mode: at ceiling installation mode,there have fisheye mode,cylinder mode,corridor mode and fulI screen mode
Cruise: setup auto cruise .
Sound:setup the sound on/off
Swith code stream:switch HD and SD
Split screen dispaly: choose screen channel number
Screen aspect ratio: can set the screen aspect ratio
PTZ control: control the movement of high speed dome
Timeline:drag the time line left and right to choose recording period . Use fingers to zoom in or zoom out the timeline