This is a very humanized design product which suitable for babies potty training. It comes in an armband with an included alarm, which has high sensitivity of wet. Place or clip the sensor to where the moisture will be detected, and it will alarm you to help your baby to the bathroom. No more bed wetting, you might have restful nights and less laundry after having such a gooditem. Features: High sensitivity. Mini size, small and exquisite. Adjustable elastic armband to ensure a comfortable fit. Good to use for potty training and help to cure the bed wetting problem. After the alarm was activated, there is a voice and gently vibrates to let you know. Suitable for babies, people who are old and frail, and who cannot take care of themselves. Specifications: Material: ABS Power Supply: 2 * CR2025 button battery (included) Power Voltage: 3V Max. Operating Current: 30mA Wire Length: 92cm / 36.22in Item Weight: Approx. 48g / 1.71oz Item Size: Approx. 5 * 4 * 1.5cm / 1.97 * 1.57 * 0.59in Package Weight: Approx. 148g / 5.22oz Package Size: Approx. 10 * 10 * 4.5cm / 3.94 * 3.94 * 1.77in Package List: 1 * Alarm 1 * Screwdriver 2 * Mini Clip 2 * Pins 2 * Sticker 1 * Record Card 1 * Manual (English)