[. . . ] Ensure the correct polarity (see the floor of the battery compartment or the imprint on the outside). [. . . ] During the life of the guarantee any fault of the device or its accessories *) ascribable to material or manufacturing defects will be eliminated free of charge by repairing or, at our discretion, by replacing it. The guarantee services do not entail an extension of the life of the guarantee nor do they give rise to any right to a new guarantee!Without proof of purchase no free replacement or repair will be carried out. If you wish to make a claim under the guarantee please return the entire machine in the original packaging to your dealer together with the receipt. *) Damage to accessories does not mean automatic free replacement of the whole machine. Broken glass or breakage of plastic parts are always subject to a charge. [. . . ] After the expiry of the guarantee repairs can be carried by the competent dealer or repair service against the payment of the ensuing costs. [. . . ]