2Pack Power Outage Failure Cut Loss Alarm，Power Failure Sound and Light Alarm Sensor Alert with Flash Light,0-120Db Siren Alarm Sound Can Be Adjusted ((Included 9V Battery)

Lelukee 2Pack Power Outage Alarm, 0-120Db Siren, Red Flash Light, 9V Battery Included

VARTA Longlife 9V Block 6LR61 Alkaline E-Block Batteries (2-pack) - Made in Germany - ideal for fire alarms, smoke detectors, tuners (Packaging/design may vary)