Note: The smart ZigBee Tuya SOS button must work with Tuya gateway Hub which supports ZigBee protocol. It can't work without Tuya ZigBee intelligent gateway. Features: *ZigBee Tuya SOS button linkage with home other smart devices such as lights, curtains, siren, then notifications pushed. Low-consumption design, which can make it work long time. *Simply press the call button to alert the caregiver via the receiver or Tuya Zigbee Hub. Widely used in home, hotel, hospital, retirement home and other needed places. *Our nurse caregiver SOS emergency call button alert system for patient, disabled, elderly and children is simple to use and provides peace of mind. *Ideal for use as an alert aid for elderly, pregnant woman, children or disabled who can't stand up from toilet, bathroom fainting, floor mat fall alarm or heart attack, emergency call for help. *Call button can be wall mounted beside bedside, sofa, closestool or placed near caregiver. Specifications: Item Type: ZigBee Tuya SOS Emergency Button Power Supply: 3V CR2032 (included) Work Current: 9-12MA Battery Working Time: 8-12 months Wireless Connection: ZigBee APP: SmartLife/Tuya Support systems: Android and IOS Installation Way: Wall Mounted(with sticker) Installation Height: 0.8m-1.2m (Suggested) Material: ABS Package Size: Approach. 10 * 9 * 6cm / 3.9 * 3.5 * 2.4in Package Weight: Approach. 35g / 1.23oz Package List: 1 * SOS Emergency Button