1:1 face verification 
In  the  1:1  face  verification  mode,  the  device compares  current  face  collected  through  the camera with that in relation to the user ID entered through the keyboard. Adopt this mode only when it is difficult to recognize the face.

1. Press [1:1] on the screen or [1:1] button to enter the 1:1 recognition mode.
2. Enter user ID and then press the “1:1 Face” icon to  enter  1:1  face recognition mode. If the  prompt “Unregistered user!” is displayed, the user ID does not exist.
3. Compare the face in a proper way. For details, see 1.1 Standing Position, Posture and Face Expression.
4.  If  the  verification  is  successful,  the  device  will  prompt  “Verified”.  The system will return to the main interface if the verification is not passed within 20 seconds.