30 Pcs Piezoelectric Piezo Ceramic Plate Dia 27mm for Buzzer Loudspeaker

Great for: Acoustic Instrument Pickups, Boxes, Contact Mics, Etc.
Resonant frequency: 4.6 +/- 0.5 KHz
Resonant impedance (ohms): 300 max

size:10 x 27mm
Material:copper
colour:gold

Package Contents:
30 x piezo sensor

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.