Description:2 wired connector, convenient for connecting. great for industrial use. When the DC buzzer is energized, it will make a sound immediately.Complete drive circuit incorporated for direct operation from DC power source.Electronic buzzers are widely used in communications, household appliances, UPS power, alarm reporting; instruments and meters, and electronic clocks etc.Note: Please allow 1-3mm error due to manual measurement. Thanks for your understanding.Specification:Product name: Active Buzzer SounderModel: 3022Sound Type: Alarm SoundRated Voltage: DC 12VSound Pressure: 105dBCable Length: 105mm/4.13"Buzzer Total Size: 37x22mm/1.45"x0.86"(D*H)Color: BlackWeight: 26gPackage Content: 2x Active Buzzer Sounder