HP LD4245tm 41.92-inch Interactive LED Digital Signage Display - Manual (Page 19)

4 Remote control
The remote control ships with batteries.
To replace batteries, open the battery cover, replace batteries (1.5 V AAA) matching (+) and (-) ends
to the label inside the compartment, and close the battery cover. To remove the batteries, perform the
installation actions in reverse.
CAUTION: Do not mix old and new batteries, as this may damage the remote control.
Make sure to point the remote control to the remote control sensor on the display.
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