Specifications:
* Drive Type: Piezo Discs
* Resonant frequency(kHz): 3.0~5.0+/- 0.5 KHz
* Resonant impedance (ohms): 300 max
* Diameter: 21mm/ 0.83 inches
* Thickness: 0.2mm/ 0.007 inches
* Wire Length: 50mm/ 1.97 inches
* Material: Brass
* Color: As shown
Package:
5 Pcs x Piezo Discs