AC 220V 110dB Active Buzzer Alarm Beeper with Wire for DIY Electronics

1. Single alarm sound high decibel active buzzer. 2. 220V AC power supply, the buzzer will make a sound when powered on. 3. Red wire is positive pole, black wire is negative pole. 4. Continuously work for up to 12 hours. 5. Can be used in fire disaster alarm. Specification: Item Type: Active Buzzer Operating Voltage: AC 220V Decibel: 110dB Wire Length: Approx. 33cm / 13.0in Package List: 1 x Buzzer