About This Item: How This Tuya Wi-Fi Emergency Call Button Work: Connect the emergency button to your WiFi and add it to the Tuya smartphone app. When the elderly/patient/person with limited mobility needs help, they just need to press the call button. No matter where you are, your phone can receive an alarm message, and you can go to help your family in the first timeSmall Size and Portable Call Button: Can be hung on the neck with a lanyard or pasted with Double-sided tape, small size call button anyone can operate itTuya Smart App Control: Scan the QR code or search for "Tuya Smart" to download App, you can add or remove buttons in the App; remove Alerts in the App; Implement multi person sharing function in the appMutiple People Sharing: Share with more family members through the sharing function in Tuya App. After pressing the button, the person you shared can also receive alarm messages, so that multiple family members can participateProduct Name: WiFi SOS Call ButtonPower: Built-in battery ChargingAPP: Tuya / Smart LifeSmart home platform: Alexa, Tuya, Google AssistantMaterial: plasticcolour: whitePackage Contents: 1 x Call Button1 x USB cable1 x English instructionsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.