LG TONE-DFP9 Manuel De Référence page 16

CAUTION: When the LAS mode is enabled, you may hear the ambient
!
sound become loud suddenly.
When using the ANC function outdoors, pay attention to the
surrounding environment for safety.
UVnano
NOTE: The UVnano indicator turns on blue while the UVnano LED is on.
The UVnano charging case eliminates up to 99.9% of harmful
bacteria inside the earbud hole.
In the case of a white product, discolouring may occur in the
contact area of the UVnano LED, but it does not affect the product
function.
CAUTION: Be aware that the temperature of the earbuds may rise
!
while the UVnano LED is on.
The charging case has a built-in
UVnano LED, which allows you to
use your earbuds cleanly.
If you charge the earbuds wired after
mounting them on the charging case
and closing the cover, the UVnano
LED operates for 5 minutes.
*UVnano is a compound word
derived from the words UV and its
unit, nanometer.
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