Piezoelectric
high frequency speaker:
Piezoelectric high
frequency speaker is comprised of piezoelectric element, drum
paper and case. It has the characteristics of high frequency,
high sound pressure, high impedance, and low current, and it is
widely used in high frequency or very high frequency range, such
as sound box, radio/recorder, alarm apparatus, and mouse expeller.
For piezoelectric high frequency speaker, center
support is usually adopted.
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