Dell S560P User Manual page 15

Remote Control Operating Range
Operating range
Angle ±30°
Distance 7 m/22.97 feet
Angle
Calibrate
VGA
Touch
NOTE:
Actual operating range may slightly differ from the diagram.
Weak batteries will also prevent the remote control from properly
operating the projector.
Freeze
Blank
Info
Screen
Video
HDMI
Mode
Angle
About Your Dell Projector 15