Kirkland Signature KS 9.0 User Manual page 51

Operating The product is designed such that it functions without
conditions
problems or restrictions if used as intended, unless
otherwise noted in these user guides. The hearing aids
are classified IP68 (depth of 1 meter for 60 minutes) and
designed to be used in all daily life situations. Therefore you
do not have to worry about getting the hearing aids exposed
to a rain shower or sweat. However, the hearing aid is not
intended to be used in water activities that includes
chlorinated water, soap, salt water or other liquids with
a chemical content.
Indicates the manufacturer's serial number so that
a specific medical device can be identified.
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