Features: Instantly Emergency Alert: Press button to send instantly alert to the designated contact, caregivers, or emergency service.WiFi connection: Connect to the home WiFi to ensure fast and reliable communication. Easy integration: compatibility with popular home platforms. Battery: Equipped with battery, it can be used for several months on a single charge. Multiple installation option: Self-adhesive, making it easy to install on wall or other surfaces. Remote monitoring: Real time monitoring of button status through a mobile app to ensure the normal operation of the device. Multipurposed application: Suitable for the elderly, children, disabled, or people in need of special care. Specifications: Material: ABS Size: approx. 52x15mm/2.05x0.59inch Standby current: 20μA Average current: 85mA Internal battery: 3.7V/400mAh Charging: 1 hour WiFi: 2.4GHz Package Includes: 1Pc SOS Call Button note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.