Convenient and reliable: This device is ideal for elderly individuals, children, disabled persons, pregnant women, or patients requiring immediate assistance. Since caregivers or helpers cannot always be present, simply pressing the button allows users to receive prompt and attentive care without needing to call out. It can also function as a doorbell. Long distance: Operates up to 400 meters in open areas (distance may be reduced by walls and obstacles). Utilizes 16-bit encoding to minimize interference from other devices, ensuring reliable performance throughout the home. Easy to place: The waterproof transmitter includes a lanyard for wearing as a pendant or placing near the bed. The receiver can be wall-mounted with a cord, placed on a surface, or carried in a caregiver’s pocket.