Assertion: piezoelectric speaker | /r/CapableOf | use piezoelectric effect
Facets:
value: for generating sound
type: PURPOSE
Source sentences:
text: A piezoelectric speaker (also known as a piezo bender due to its mode of operation, and sometimes colloquially called a "piezo", buzzer, crystal loudspeaker or beep speaker) is a loudspeaker that uses the piezoelectric effect for generating sound.