Tuya Smart WiFi GSM Home Burglar Alarm System — Built-in Siren, App Doorbell, Door & Motion Detector, 8 Languages

Built-in loud siren — the alarm includes an integrated high-volume siren so there’s no need to install an additional wired siren. APP control — connect the unit to your WiFi router via the mobile app settings, then remotely control and monitor the system from anywhere at any time. Doorbell function — no separate physical doorbell button required; the app contains a doorbell button you can press whenever and wherever you like. 8 Languages support — Chinese / English / Deutsch / P / Español / Polski / ltaliano / Français. Scheduled arm/disarm — set automatic arming and disarming times (for example: have the system arm itself when you go to work and disarm automatically when you return), eliminating frequent manual operation of the host.