Features:<br> LED indicator shows power out / failure alarm and power condition. The siren alarms when the power supply is cut off until restore power. The warning could be manual muted by on/off switch. Drawer-type cell cover design, can change the battery easily. High voltage resistant design, works fine even when power voltage exceeds standard. <br> Specification:<br> Plug: CN Plug<br> Voltage: AC 220V<br> Color: Color<br> Battery: 1pcs x 9V Battery (NOT included)<br> Alarm Volume: 120db<br> Cable Length: Approx. 85cm/33.5inch<br> Size: Approx. 10*5.3*2.5cm/3.9*2.1*1inch<br> Weight: Approx. 100g / 3.5oz<br> <br> Package List:<br> 1 x Power Failure Alarm<br> <br> Note: Please kindly make a note if you need any plug adapter.<br>