1.4. Available advanced functions: set the alarm volume to low, , medium and the alarm time in the range of 0 up to 30 minutes, with 18 optional alarm ringtone types for a experience; turn the alarm on/off via the app for a more user experience. 2. Key Features: Smart ZigBee Siren Alarm with Sound Light: The 2in1 alarm system features 90dB sound and flashing lights, designed for smart homes to provide realtime alerts and timely detection of home conditions. 3.3. Tuya Smart/Smart Life APP Compatibility: Activate the alarm sensor via the app after adding it to the Smart Life app, and use it as a doorbell. Monitor alarm recordings in the app for added convenience, ensuring easier home security. Check home conditions remotely using preset scenes in the app. 4.2. Intelligent Scene Linking (Tuya Gateway Required): Enable smart scene integration by linking the acoustic alarm with other smart home devices for scenarios requiring alarms. Schedule execution times to trigger the alarm at preset times based on your needs. Note: This Tuya ZigBee alarm requires a Tuya ZigBee gateway. Due to compatibility limitations, other hubs are not recommended.