Moisture sensing bed pad attached to a miniature alarm box offers an effective way to stop bed wetting. Simply place pad underneath dry bed sheet with moisture sensor strips facing upward. Alarm will sound as moisture touches the pad. Pad is 20" x 26". alarm box is 2" x 2.5". Includes a 66" electrical cord for entire unit and 9V battery for alarm box. For Adults and children. Additional information: The pad is constructed of Poly Foam material. It requires low maintenance, simply wipe surface with a warm wet rag after each exposure and dry thoroughly. Unit can be placed in a pillow case or under the sheet for usage. There is a 66" cord fastened to the pad and connected to the Alarm box which runs off a 9V battery. This unit does not plug into the wall. There is a 60 day manufacturers defect warranty. Replacements are available on the pad and alarm boxes can be sent back to the manufacture for repair.