5V Active Buzzer

The active buzzer or active sounder is a simple component that produces a fixed-frequency sound tone once connected to a 5-volt power source. It contains an internal electronic oscillator, so it does not require a complex control signal from the microcontroller. It is the easiest and fastest option to add sound alerts or alarms to your project, as all you need to do is connect and disconnect it from the power to turn it on and off. Technical details: Type: active sounder (Active Buzzer) Operating voltage: 5 volts Sound: tone with a fixed frequency (about 2.5 kilohertz)