Lenovo ThinkPad X1 Carbon Type 20A7 20A8 - Manual (Page 10)

Noise cancellation
Tap: Changes the microphone noise-cancellation sensitivity.
Camera on/off
Tap: Turns on or turns off the camera.
Camera mode
Tap: Changes the camera modes, for example, the normal
mode, face-tracking mode, and desktop-sharing mode, or
launches the camera settings.
Screen rotation Tap: Rotates the screen clockwise. Each time you tap the icon,
the computer screen rotates 90 degrees.
When the computer is opened to its lay-flat position, a special
set of Adaptive Keys is displayed.
This set of Adaptive Keys features a unique Rotate icon, which
enables you to rotate the computer screen to accommodate
people sitting across from you or 90 degrees to your right or left.
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