NEC E558 55" Class 4K UHD Commercial LED TV - Manual (Page 39)

English - 36
Operating Range for the Remote Control
Point the top of the remote control toward the monitor’s remote control sensor during button operation.
Use the remote control within a distance of about 7 m (23 ft.) from the remote control sensor, or within a horizontal and vertical
angle of 30° and within a distance of about 3.5 m (10 ft.).
NOTEN: The remote control system may not function when direct sunlight or
strong illumination strikes the remote control sensor, or near fluorescent
lamps.
Handling the remote control
• Do not expose to strong shock.
• Do not allow water or other liquid to splash on the remote control. If the remote
control gets wet, wipe it dry immediately.
• Avoid exposure to heat and steam.
• Ask your supplier or your municipality for information on how to dispose of the
batteries.
• Do not open the remote control, except to install the batteries.