Tuya WiFi Intelligent Siren Sensor with Audible and Visual Alarm 90dB Loud Alarm APP Remote Control Home Safety System Compatible with Smart Life This 2-in-1 alarm system features a 90dB loud sound and flashing light, designed for home safety with real-time alarm alerts and timely detection of home conditions. Features: - 90dB loud alarm with 18 selectable alarm ringtones - Dual power options: USB cable powered or battery powered; battery level and low battery notifications available via smartphone app - Supports remote control through mobile app - Works with other smart home devices to trigger alarms; integrate with motion sensors to activate alarm upon detecting human presence - Power-off memory function - Share device access with family members for shared control of the siren alarm - View alarm history and automation logs remotely on smartphones Specifications: - Color: White - Material: Plastic - Sound output: 90dB - Battery: 2 x CR123A 3V (not included) - Device dimensions: 68 x 68 x 33mm / 2.7 x 2.7 x 1.3in - Package dimensions: 95 x 85 x 50mm / 3.7 x 3.3 x 2.0in - Package weight: 110g / 3.9oz Package Contents: - 1 x Siren Alarm - 1 x Screw - 1 x Sticker - 1 x User Manual - 1 x USB Cable