[Easy to use] One-touch alarm and push notification to mobile phone, which helps prevent accidents. Full mobile phone app monitoring, sends push notification to the mobile app when pressing the button. [Mobile phone control] After pairing with Smart Life app, you can monitor in real time through your smartphone. [Applicable people] The multi-function pager is suitable for children, the elderly, pregnant women, patients, and disabled individuals. [Small and light] Small and lightweight, it can be used in various scenarios. Simply hang it around your neck or attach it to a surface using double-sided tape. [Smart linkage] Can be used in conjunction with other Smart Life app devices to trigger an alarm. (Linkage devices need to be purchased separately) [Extra long standby] Built-in 400 mAh rechargeable polymer battery, low power consumption, long standby time. One charge lasts over 3-6 months. [Low battery reminder] Enable the low battery reminder function in the Smart Life app to receive timely notifications when battery is low. [Device sharing] Through the device sharing function, it can be shared with family members. Quantity: 1 PCS Standby current: 0.1μA Average current: 12mA Built-in battery: Polymer battery 3.7V/400mAh Charging time: Less than or equal to 1 hour Wi-Fi: 2.4G App: Smart Life (Tuya) Product size: 50x50x16mm Product weight: 25g Color: White Material: ABS Package Contents: 1 * Elderly SOS Button Only 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 to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.