PetSafe ScatMat Power Adapter 9 Volts POWER ADAPTER IMAGES FOR REFERENCE ONLY, ACTUAL ADAPTER APPEARANCE MAY VARY Approved alternative to 9-volt DC batteries Fits all PetSafe ScatMat Indoor Pet Training Mats with existing power pack . ; Does not work with ScatMat Extension Only Adapter compatible with the following ScatMats with existing power pack: SKM-C421 Medium 30" x 16", SKM-C411 Large 48" x 20", PDT00-13638 Curved 50" x 12", SKM-C471 and Sofa 60" x 12" , SKM-C441 Strip 46" x 3" 6 foot cord included Great for heavily used areas where battery would run down faster Call, chat or email with our expert PetSafe US-based customer care specialists six days a week; They are waiting to assist you and your pet with your product needs at 1-800-732-2677 or by email at ccc3@petsafe.net Manufacturers warranty is only valid when purchased from and authorized retailer