"EAR TIPS : Remove the ear tips from the earbuds and wash them with a mild detergent and water.

NOTE: Make sure you thoroughly rinse and dry the ear tips before re-attaching them to the earbuds."

"EARBUD NOZZLES : Wipe only with a dry, soft cotton swab or equivalent.

CAUTION: Never insert any cleaning tool into the nozzle."

CHARGING CONTACTS (On Earbuds) : To prevent corrosion, wipe with a dry, soft cotton swab or equivalent.

"CHARGING CASE : Wipe only with a dry, soft cotton swab or equivalent.

Make sure that the charging cable should be dry and properly fit in the Charging Port