Audeze Deckard Mode D'emploi page 6

Care and Maintenance
Regular maintenance is not required, but an occasional wipe
with a clean, dry, lint-free cloth is recommended while the
Deckard is powered down.
TIP: If you leave your cables connected to the Deckard for long
periods of time, we recommend that every six months you shut
off the Deckard and disconnect and connect the cables several
times; the wiping motion cleans the RCA terminals of oxidation.
CAUTION
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
NOTE: Opening device will void warranty. Contact Audeze for
service. Keep the product, accessories and packaging out of
reach of children. This product is not intended for use by
children under the age of 12.
Unpacking
Be careful when handling the Deckard. It's important to note
that the side panel heatsinks are relatively sharp.