Mini Tuya Zigbee Elderly SOS Button Waterproof Emergency Panic Sensor Alert Push To Mobile Home Automation Security Alarm System SOS Emergency call button One-click calling, no extra action One-click calling, remote notification One-click call emergency in the first time to receivethe APP alarm, even if you go out, you don't have toworry about not receiving the call of the elderly. The lanyard design can be worn withyou and can be pressed at any time. Always on guard A smart guard for the safety of the elderlyOne-click distress device for the elderly One-click help for multi-person guards If it is difficult to save yourself from sudden diseasessuch as myocardial infarction, cerebral infarction, andheart disease, press the SOS button to quickly send adistress alarm message to your family. Touch and press for durability It can be activated by touching the fingertips, and theelderly and children at home can also easily trigger it,and it has passed the N press test and is durable. Built-in large-capacity rechargeable battery, no needto replace the battery, simple and convenient. Internal battery: Polymer battery 3.7V/400mAh