6.2 Out of Box Failure: For Product experiencing failure within the first ninety (90) days of original shipment, Buyer will contact Inogen to obtain an RMA number. Inogen will ship a replacement Product (which solely at Inogen?s discretion will be a new Product or a repaired Product built to a new specification and warranted as new) to Buyer in advance of receiving the failed Product. Inogen will cover the shipping cost of the replacement Product to the Buyer as well as return shipment of the failed Product to Inogen. Buyer will not be charged for the replacement Product provided Buyer returns the failed Product to Inogen within ten (10) business days. If failed Product is not received within ten (10) business days from issuance of the RMA, Inogen will invoice Buyer for list price of the replacement Product due and payable by Customer upon receipt. If product is deemed damaged as a result of user abuse and is therefore billable to Buyer as a Product repair. Buyer agrees to accept repair charges in this event and will be invoiced for said charges, due upon receipt.