EZWatch TurboView DVR - Manual (Page 102)

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 Touch and drag upside on the center of the screen to zoom out.
 Touch and drag downside on the center of the screen to zoom in.
 Touch sides and corners of the screen to change the direction as user want.
 Touch right side of the screen to move right and left side to move left.
 Touch up side of the screen to move up and down side to move down.
 In the same way, touch any corners to change the directions.
12.1.6 Disconnection
 Users are able to control PTZ with iPhone by touching the screen.
 When disconnecting, please click “Disconnect” and exit the mobile viewer program.