We require the original Express Comtronic's invoice for all returns or exchanges. Customers who purchase online may send us a copy of their invoice instead of the original.All products to be returned or exchanged must have their complete original packaged materials including any manuals, printed materials, disks, and cabling. All returned goods must be in resalable condition, inspected and approved by our staff.Returns are valid within 7 days of in-store purchase (14 days of online purchase), the following conditions are for products to be returned:more...See more text