Piezo stacks are ideal here (though hackers have also used cheap buzzers!). ... Effectively the capacitor acts as a weak piezo electric speaker. Using a 100V drive voltage ...

Making your own piezo speakers is actually very easy, as [Steven] shows us after replacing the speaker in a clock radio. Piezo speakers require a small crystal with piezoelectric properties, so ...

Kyocera Corporation has combined a piezoelectric actuator with a special resin film to produce Smart Sonic Sound – a piezo film speaker that is thinner and lighter than conventional speakers yet ...

The Synaptics Resonate amplifier drives a piezo transducer element attached to the back of a display and vibrate the display to produce audio. Synaptics highlighted its Synaptics Resonate audio ...

An amp emulation pedal can transform your acoustic amp into an electric combo, giving you the best of both worlds ...

The low-cost, pocket-friendly, open source, and completely hack-friendly Soundlazer parametric speaker has now secured sufficient crowd-funding to enter production.

The Lassen micro-speaker measures just 3.2 x 5 x 1.15 millimeters, which is roughly the size of a grain of rice. Still, it boasts 115dB SPL in the 6kHz to 20kHz frequency range, "delivering sound ...

the P180 doesn't have a speaker, as far as I can tell (mine doesn't.) if your board doesn't have a piezo buzzer on it, then you'll have to stick a speaker somewhere yourself ...

The best outdoor speaker for your backyard should also be able to withstand some degree of moisture. ... They’re made with a 20mm tweeter piezo dome and a 40mm polypropylene cone to provide ...