LG TONE Free Owner's Manual page 424

The output level shall automatically return to an output level not exceeding
RS1 when the power is switched off.
RISK GROUP 2
CAUTION : UV EMITTED FROM THIS PRODUCT.
EYE OR SKIN IRRITATION MAY RESULT FROM EXPOSURE.
USE APPROPRIATE SHIELDING.
WARNING : IF YOU DON'T DO CHARGING OR IF
YOU OPEN THE CHARGING CASE, THE UVNANO
FUNCTION IS NOT ACTIVATED.
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