b'MAINTENANCEThe product requires no maintenance. Any repairs must be made by a technician authorized by Pellini SpA.N.B.: any failure to follow the instructions or tampering with the battery module will invalidate the warranty.CLEANINGClean the product using a clean, dry, soft cloth that does not leave any residues. To remove stubborn dirt, you can slightly moisten the cloth with warm water. Do not use solvent-containing detergents. Do not clean the gold-plated contacts with alcohol or other substances.REPLACING THE BATTERYThe battery can only be replaced by a technician authorized by Pellini SpA.17'