•Dual Connectivity (4G + WiFi): Automatically switches between 4G and WiFi for uninterrupted performance, ensuring reliable alerts even during network outages. •Real-Time Alerts: Instant push notifications, SMS, and app alerts when motion, door/window opening, or other suspicious activities are detected. •Remote Control: Arm, disarm, or customize settings from anywhere using the intuitive mobile app. •High-Decibel Siren: Built-in 120dB alarm siren to deter intruders and alert nearby occupants. •Multi-Sensor Support: Compatible with door/window sensors, motion detectors, smoke alarms, and more for comprehensive security coverage. Connectivity:Dual-mode: 4G LTE + WiFi Alarm Sound Level:120dB high-decibel siren Power Supply:DC5V + built-in rechargeable battery Operating Temperature:-10°C to +50°C Backup Battery Life:Up to 8 hours (depending on usage) App Support:for iOS and for Android (free download) USB charging Color: As Shown Material: plastic Package Contents: 1 Security Alarm System Kit (Accessories as shown in the picture) 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.