Product description
Piezo element that can be used either to play sound or in reverse, to pick up sound / vibrations
Extremly low build height.
Requires external oscillator.
When used to pick up sound, it's usually called a contact microphone.
Sold with wires soldered to the piezo disc.
Resonant frequency: 4.5 kHz ±1kHz
Capacitance: 30-35 nF
Diameter: 20 mm
