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Your cart is empty.2 Terminals, complete drive circuit incorporated for direct operation from AC power source. They have good characters like small cubage, low wastage and high voice pressure. Please note a passive buzzer needs an external oscillation circuit to operate.
Jason
August 3, 2025
Using these for audible feedback for keyboard and RC commands. These are driven by PWM signals. I’m using an esp32 microcontroller. I like how these are sealed on the bottom; they are clearly marked for polarity and can be driven directly from the esp32. You can use a beadboard with these, by using creative angles to make it work :)
Ross Andrews
August 1, 2025
Ten passive piezo speakers. Not too loud, not too quiet. Square waves in, sound out. Exactly what you expect.
David M.
July 30, 2025
These are not piezo buzzers. They are speakers. They still work if you feed a PWM signal to them, but beware - a constant voltage produces no output.
s.deornellas
July 23, 2025
Works exactly as expected. I think the loudest freq is around 4khz.
An Englishman in New York
July 7, 2025
These buzzers are quite tiny, only about 2/3rd's the size of the ELEGOO ones. This means by comparison they are rather quiet, still perfectly functional for button feedback or error code buzzing, but you have to listen.They also have rather short connections and aren't quite on the standard 0.1" spacing, which means if you want to use them in the breadboard you will probably have to add a couple of drop leads with dupont pins so you can get them plugged in.On the plus side these are a real bargain, but every corner has been cut to achieve that. Just hope they stay reliable as they are soldered to my circuit board!
Matt
April 23, 2025
Nice and small for the bread board we use.
NorthShore
April 3, 2025
These are obviously well made and have consistent behaviour; they each have a resistance of 17 ohms. Not piezo! So better to think of them as little speakers and expect to drive them accordingly. Won't work for my application.
Algernon
February 21, 2025
Measuring them on an LCR meter, they are 18 ohm, 13.2 millihenry inductors at 1kHz. A true piezo element is a capacitive device with very high impedance.
ecamps
February 16, 2025
Great price, works perfectly
Mohamed Elgizouli
February 10, 2025
Arrived in time and served expectations
polo
January 24, 2025
No valen para nada, no se escucha una mierda, hacen un ruido como el de el chasquido de los dedos o como el de la lengua con el paladar.
glenlopez
December 4, 2024
Higher frequencies dont register. These buzzers are very poor quality.
Phil
November 24, 2024
These are transducers that only work on an AC signal. THEY DO NOT WORK ON DC
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