The Tuya SOS button is linked with other smart devices in the home such as lights, curtains, and alarms, and then push notifications. Low power consumption design, can work for a long time. Just press the call button to alert caregivers via the receiver or the Doodle Zigbee Hub. Widely used in homes, hotels, hospitals, nursing homes and other places where it is needed. Our Nurse Paramedic SOS Emergency Call Button Alert System for patients, disabled, elderly and children is easy to use and gives you peace of mind. Ideal as an alarm aid for seniors, pregnant women, children or disabled people who cannot stand up from the toilet, fainting in the bathroom, floor mat fall alarm or heart attack, emergency calls for help. The call button can be installed at the head of the bed, sofa, next to the toilet or placed near the caregiver. Product Description Working current: 9-12MA Battery working time: 8-12 months Installation height: 0.8m-1.2m (recommended) Product size: 39x39x12mm