Enuresis alarm made of high quality ABS, is non-toxic and durable to use, mini size, small and exquisite. Size: about 5 * 4 * 1.5cm / 1.97 * 1.57 * 0.59in, equipped with adjustable elastic cuff to ensure a comfortable fit. Line length: 92cm / 36.22in, Operating current: ≤30mA, does not hurt your baby.