Baby Smile Baby Alarm Used only during nighttime sleep for about 2 weeks after birth. The baby sensor allowed both mother and child to sleep peacefully. Also, a battery is already inside the sensor, but an extra battery is included. The box and instruction manual have been discarded. - Brand: BabySmile - Included items: New battery - Function: Preventing accidents during infant sleep - Shape: Egg-shaped - Package contents: Alarm and battery - Intended use: Checking the safety of the baby There are no stains or scratches, but please consider this item as used. Thank you for looking.