Buzzers convert electrical signals into sound waves and are therefore used as audio outputs in electronic devices. Buzzers usually consist of a coil, magnetic coil and magnetic plates, which convert electrical signals into sound waves. Buzzers change the strength and tone of sound waves according to the frequency of the electrical signals.

There are several types of buzzers and these types have different characteristics. For example, dynamic buzzers use a moving coil to convert electrical signals into sound waves and therefore perform according to the strength of the sound waves. Studio buzzers, on the other hand, are used to output higher quality sound and are generally more expensive.

Buzzers are used in a variety of electronic devices and are used in devices specifically designed to give warning signals, alarm systems and other devices. Buzzers may be less expensive than other electronic components, but they perform better at higher frequencies.