12pcs Piezos Amplifier with Leads For Cigar Box Guitar Pickups

12pcs Piezos Amplifiers with Leads For Cigar Box Guitar Pickups Description: Plate Material: Brass It's suitable for installing in cigar box guitars, foot stompers and other home-made instruments They can also be used for custom pickup arrangements in more traditional stringed and percussion instruments Easy to install, convenient to use. Resonant Frequency (kHz): 4.6 +/- 0.5kHz Resonant Impedence (ohm): 300 max Capacitance (nF): 20.0 +/- 30% [1kHz] Color: As the pictures show Quantity:12 pcs Package Included: Piezos Amplifiers Discs Leads x 12