Protect your home with a Wireless Alarm Siren! It can be linked with all Tuya smart products to form a powerful home alarm system. Once the alarm is tripped this will tigger a loud siren. Installation is super simple! Plug into any electrical outlet with the USB power cable and Stick or hang on the wall! Generally installed in the wall or doorway and other places. If you are needing to add an additional wireless siren to your Tuya Smart Wireless Alarm System, then this is the product you've been looking for! Specification: Item Type: WiFi Alarm Siren (Tigger alarm and Make sound) APP: Tuya Smart/Smart Life APP Material: ABS Power Supply: DC 5V/1A Volume: 100db (Maximum) Sound type: 32 Alarm duration: 1-380s Wireless Range: Approx. 55m Network protocol: IEEE 802.11b/g/n Wireless frequency: 2.4GHz Operating Temperature: 0?-40? (32-104?) Working Humidity: 20%-85% Storage Temperature: 0?-50? (32-122?) Storage Humidity: 0%-80% Size: Approx. 65x65x18.5mm / 2.54x2.54x0.73in Package List: 1 x Home Alarm 1 x USB Cable 1 x Manual