1.The alarm is worn around your childs upper arm using an adjustable arm band, and uses a sensor that attaches to close fitting underwear to detect urine.
2. When the bedwetting alarm sounds during the night, it flashes a blue light, vibrates, and makes a sound.
To stop the alarm from sounding, simply detach the sensor cord from the alarm.
3. Batteries are included in this package, so you can start using the bedwetting alarm right out of the box!