iucos_bay Calibration Microphone For Denon Receiver Series AVR / A / E / S / X Payment: We accept PayPal only and full payment is due immediately . PayPal allows you to pay by credit cards, debit cards, bank transfers and PayPal account balances. A non-payment dispute will be opened if full payment is not received after 14 days of auction. Shipping: We ship Monday through Saturday. We do not ship on Sunday or any Public Holiday.We cannot change any shipping addresses once they have been entered upon checkout,ebay policy. Please allow 24 hours for tracking information to update .We are not responsible for any delays that may occur during transit. Fast shipping from Chicago, illinois Warranty:30 Days warranty to all our products.Our warranty does not cover to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part.We keep records of Serial Numbers for all units we sold. DO NOT REMOVE SECURITY LABEL, it will void the warranty. Contact us: Customer Satisfaction is very important to us !If you have any question, please contact us VIA eBay message system, please DO NOT open dispute or leave negative feedback before communicating with us.Give us a chance fix the problem. Thank you for your business with us!