Feature: 1. LED INDICATOR FOR POWER STATUS: The router location is equipped with LED indicator lights to display power status, including power failure and fault alerts. 2. AUDIBLE ALERT: Emits a 120dB alarm sound when power is cut off, providing a loud notification that continues until power is restored. 3. MANUAL SILENCE SWITCH: Includes an on/off switch for manual control, allowing the user to silence the alarm as needed. 4. BATTERY DRAWER DESIGN: Features a drawer-style battery compartment for easy battery replacement, ensuring uninterrupted operation. 5. HIGH VOLTAGE TOLERANCE: Built to withstand overvoltage conditions, this alarm functions normally even during high voltage events. Specification: Item Type: Power Failure Alarm Material: ABS Power Output/Failure Alarm with LED Indicator Light Audible Alarm when Power is Cut Off, Continues Until Power is Restored Alarm can be Silenced by On/Off Switch LED Indicator Light Shows Power Status High Voltage Tolerant Design, Works Normally Even with Overvoltage Drawer Unit Cover Design for Easy Battery Replacement Usage: Connect the Alarm with 220V Power Supply, Turn on the Power Switch Size: Approx. 10 x 5.3 x 2.5cm / 3.94 x 2.09 x 0.98in Cable Length: Approx. 55cm / 21.65in Alarm Volume: 120dB Power: 1 x 9V Battery (Battery not included) Color: White Package List: 1 x Power Failure Alarm