BabySmile Infant Movement Sensor Baby Alarm E-201 This is a baby alarm with a sensor that detects the baby's movements. It is used by placing it under the bed mattress. Purchased in July 2025. I am selling it because it was not useful as my child's sleeping posture was too bad. It has only been used for one night, so it is in very good condition. There are no stains or scratches on the main unit. The box, strap, and instruction manual are also included, but the strap has been cut short, so the length is 46 cm (as shown in the second image). Furthermore, when I purchased it online, the shipping label and tape were directly attached to the box, so the box looks dirty. Please check the 3rd and 4th images. It will be shipped with the box wrapped in cushioning material. Batteries are not included. (Requires 3 AA batteries.) No price reduction, immediate purchase is OK. Please purchase if you understand the above. 【Product Description】 Brand/Manufacturer: BabySmile Model Number: Baby Alarm E-201