Headphones commonly fail due to the breaking of connector wires, which are made of copper that cannot withstand continuous bending. Frequent bending and yanking on the cord can accelerate this wear. To prolong headphone life, it's recommended to reinforce the cord near the connector and where it enters the earphones. Using a rubber band as a reinforcement can help maintain the cord's integrity at these vulnerable points. Investing in higher-quality headphones, which often have reinforced weak points, can also be beneficial. Some professional-grade headphones allow for cord replacement, further extending their usability. While cheaper headphones can be a temporary solution, taking care of the cords and using protective measures can enhance their longevity.