20PCS 12mm Piezo Elements Sounder Sensor Trigger Drum Disc + wire copper OZ

ITEM NAME:20PCS 12mm Piezo Elements Sounder Sensor Trigger Drum Disc + wire copper OZ a.imagelink a:hover.imagelink {color:#db3606;.Quantity: 20pcs. 12mm with flying leads. Material: Copper,PVC. Storage Temperature(℃） -30∽+80. Wide tonal response. Speech and music applications. Resonant impedance(Ω） Rr≤500Ω. ).