A warranty is a promise made by a manufacturer or seller to repair or replace a product if it has defects or issues within a specified period. Warranties can vary in length and coverage, often depending on the type of product, such as electronics or appliances. They provide consumers with assurance that the product will function as intended. There are different types of warranties, including express warranties, which are clearly stated, and implied warranties, which are automatically provided by law. Understanding the terms of a warranty can help consumers make informed decisions and protect their investments.