CTX Virtual Technologies The VK200 KEYFOB Virtual Keyboard - Manual (Page 38)

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9. POWER SAVING MODE
1. Hold down the and the Alt key for 3 seconds
to turn off the laser Projection and reduce camera
intake speed. Double beeps will confirm the 3
seconds period is being detected.
2. To reactivate laser projection and return operation
to normal, tap or swipe anywhere in the keyboard
operational area.
If there is no motion detected for 5 minutes the unit
will automatically turn the keyboard display off and
reduce the camera intake speed to save battery. Any
motion in the keyboard area will return the unit to
normal function. Automatic power saving mode will
only occur when the VK200 KEYFOB
® is operating
under battery power.
BATTERY LIFE
To increase the battery life try using a lower
brightness setting.