3 Year Extended Limited Warranty for the HXCU100K Camera Control Unit. Extends the standard limited product warranty to 3 total years of coverage from date of product purchase. Warranty is subject to all of the terms, conditions and limitations of Sony's standard Limited Product Warranties, the details of which can be found at: www.sony.com/professionalservices/warranty. Excludes: wear and tear any parts warranty periods based on usage. Extended Warranties are not returnable or renewable, and Warranty coverage is only valid within the United States, excluding territories. To activate the warranty, end users must register by completing the requested information at: www.sony.com/professionalservices/registration or by faxing the completed form provided to 408-352-4160. To obtain service, contact 866-766-9272.