Product size: 7*5.5cmline length: 60cmProduct Material: ABS + sensor chipTechnical highlights: Induction one second that will remind， easy to use， safe and reliable， with no side effects.How to use: Place reminder bedside or other suitable place， the sensor detects reminder sheet flat on the lower inside the baby's diaper， switch to NO， once the baby pee， reminders will immediately replace it with the sound of music to remind parents diapers. Then the switch to OFF， disarm the alarm， and dry with a paper towel or cloth sensor chip can be used again.