Sound Defense, LLC guarantees to the original purchaser, for 10 years from the date of purchase, that the product is free from defects in workmanship and materials. If there is such a proven defect, Sound Defense, LLC, at its option, will replace the item free of charge, if it is returned within 10 years from the date of purchase together with proof of purchase. Insurance, handling and transportation charges are the responsibility of the customer. This guarantee is good in the United States only. Sound Defense, LLC reserves the right to inspect any defect prior to settling any claim by replacement.