How do I file a warranty claim? Madeleine Lee April 21, 2021 13:56 Follow Every OtO device comes with a 2-year parts and labor warranty. Refer to our Warranty Statement for complete details and conditions. Please email us your claim at: email@example.com or contact us by telephone: 1-833-473-3617. Have more questions? Submit a request Comments Please sign in to leave a comment.