uxcell 10 Pcs Piezo Discs 31mm Acoustic Pickup Transducer Element Trigger Buzzer CBG Guitar

Description * This item is brass piezoelectric discs which are essential parts for pickups of acoustic instruments. All discs are made of selected copper, which ensures excellent conductivity and a long service life. It can be easily installed and suitable for many types of instruments such as acoustic guitars, drums. Ideal for pickups, stomp boxes, contact microphones etc. Specifications: * Drive Type: Piezo Discs Resonant Frequency (kHz): 3.0~5.0+/-0.5KHz * Resonance impedance (Ohm): 300 max Material: Brass Color: as picture show Package includes: 10 x piezo discs. The color of the item may be slightly different from the pictures.