Features: -Easy to use, simply connect the emergency call button to your Wi-Fi network and add it to the app on your phone. -Suitable for the elderly, patients, people with mobility issues, etc. Just press the call button, and your phone will receive an alarm message. -The package includes double-sided tape and a lanyard, allowing it to be worn around the neck or attached to a wall, it's easy for anyone to use. -It is controlled by an app and features add or remove buttons, multi-user sharing, and other functions. .