Piezoelectric buzzers are made of piezoelectric materials, i.e. the piezoelectric materials generate electric charges when they are deformed by external forces. Similarly, when electrified, the piezoelectric material will deform.

Electromagnetic buzzer is mainly used to make use of the characteristics of magnetic field produced by electrified conductor. It uses a fixed permanent magnet and electrified conductor to produce magnetic force to push the drum fixed on the coil.

Due to the different pronunciation principles of the two buzzers, the piezoelectric structure is simple and durable, but the tone is single, and it is suitable for alarms and other equipment. The electromagnetic type is used for voice, music and other equipment because of its good timbre.
For more information, you can visit Dongguan's voice chat website or consult 13559793345. Sound Chang Electronics focuses on the production and research of buzzer and nebulizer products, and always strives to create safe, stable and conform to national standards certification products.