ViewSonic LS700-4K User Manual page 16

Remote control effective range
There are infra-red (IR) remote control sensors located at the front and back of the
projector. Hold the remote control and maintain a perpendicular angle within 30 degrees
with the IR remote control sensor to achieve normal remote control functions. The distance
between the remote control and the sensor should not exceed 8 meters (about 26 feet).
Do not place any obstruction in front of the IR sensor on the projector as this may block
the IR beam.
Note
● When an intense light source such as sunlight or fluorescent light is used to illuminate the remote
sensor, the remote control may not work.
● Operate the remote control where you can see the remote sensor.
● Do not shake or drop the remote control.
● Store the remote control in a cool, dry place.
● Do not spill water on the remote control or place moist objects on it.
● Do not disassemble the remote control.
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