● Purchased in July 2025. Used for 2 months. Functionality confirmed. ● When in use, a waterproof sheet, mattress, and sheets were used on top of this product, so there is no adhesion of feces or urine. ● This is an infant movement sensor that detects body movement, including the infant's breathing. ● It accurately detects the infant's body movement during sleep and alerts with an alarm if no movement is detected for 20 seconds. ● It prepares for emergencies such as SIDS, falls, and suffocation in infants. ● Target age: 0 months to 12 months ● Suitable weight: Suitable for babies weighing 2kg to 10kg ● Batteries: 3 AA batteries (sold separately) ● Set contents: Control unit, sensor mat, hanging string, instruction manual/warranty