Express Warranty

In commercial and consumer transactions, a warranty is an obligation that an article or service sold is as factually stated or legally implied by the seller, and that often provides for a specific remedy such as repair or replacement in the event the article or service fails to meet the warranty. A breach of warranty occurs when the promise is broken, i.e., a product is defective or not as should be expected by a reasonable buyer.
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a manufacturer's guarantee, stated in written or spoken words, that the product offered for sale will satisfactorily perform the task for which it is intended, and to the buyer's reasonable expectations. See Warranty; Implied Warranty; Promotional Warranty; Protective Warranty.

An assertion or promise concerning goods or services. Statements such as "This air conditioner will cool a five-room house," or "We will repair any problems in the first year" are express warranties.