The PottyMD Wet-Stop2 enuresis alarm teaches nighttime dryness with a buzzer attached to the pajamas near the ear and a moisture sensor held onto ordinary underwear. Over 200,000 Wet-Stops sold since 1979. Let us help your child too! Wet-Stop2 is convenient as well as effective. The Wet-Stop2 buzzer reacts immediately to the first few drops of moisture, teaching the child to stop the flow of urine before the bed becomes wet. During this learning process, dry underpants will be needed but the family will be spared the bother of remaking the entire bed. In less than six months, many children will no longer require use of the Wet-Stop2. Kit Contains: 1.Alarm & Sensor 2.Instructions for use 3.Calendar, Stickers 4.Extra Set of Batteries