[Wireless Strobe Siren Alarm] 1 portable flashing siren and 2 panic call buttons form a wireless strobe siren alarm system. Press the "CALL" button on the panic call button, the siren will make a loud sound and red flashing light. Press the "CANCEL" button on the button or short press the buttons on the siren, the alarm will be canceled. When the elderly or children have an emergency at home, they can press the button so that the siren sounds an alarm to alert other members at home or in the neighborhood [Multi-scene Application] The emergency alarm security system can be used in home, hospital, factory, school, shop, warehouse, underground parking and so on. In case of emergency, just press the button and the siren will immediately sound loud. The panic alarm system can avoid missing any emergency alarms and protect your family's security, home security and property EASY INSTALLATION & OPERATION - The portable flashing siren has two power methods (AAA battery powered or plug-in). Replacing the battery is easy and convenient, with a long battery life, so you don't have to worry about running out of power in case of emergency. You can use screws to fix the siren on the wall or place it in a visible place. The panic button is waterproof and you can use a sticker to stick it to the wall or outside. Includes stickers and screws [4 Volume Levels & Optional Alarm Time] The strobe siren volumes can be adjusted to be 0dB, 80dB, 100dB or 120dB (Dafault volume is 120dB). The siren can also connect with an external alarm device to make the alarm louder. The alarm time can be set to 30 seconds, 1 minute, 3 minutes or 10 minutes. The wireless signal range is 100m (sound range in open place). The alarm sound is loud enough, and the alarm duration can be set by yourself [Low Battery Reminder] When the siren is low power, the LED will flash once every 40 seconds, and the siren will beep three beeps to remind you that you need to replace the battery in time. The alarm can also be kept connected at all times. In the event of a power failure, the battery can continue to power the siren, allowing it to work normally and avoid missing any alarms. Siren can record 20 call buttons at most
