Characteristics: The LED indicator shows the power outage / alarm failure and power status. The siren alerts you when the power is cut off do the time the power is restored. The warning can be manually muted by the on/off switch. Drawer type cell cover design, can change the battery easily. High voltage resistant design, works well even when the supply voltage exceeds the norm. . ALARM NO POWER SUPPLY 120DB Specification: Plugin: CN plugin Voltage: AC 220 V Colour white Alarm volume: 120dB Cable Length: Approx. 55 cm/21,7 inch Size: Approx. 10 * 5.3 * 2.5cm / 3.9 * 2.1 * 1 inch Weight: Approx. 100g / 3,5 oz . ALARM NO POWER SUPPLY 120DB List of packages: 1 x Alarm power failure Kindly note if you need a plug adapter. 2. We will provide you with an adapter that complies with another country standard and ensure its normal use. . ALARM NO POWER SUPPLY 120DB