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Amazon.com - 15Pcs Piezo Disc with Wire Piezoelectric Pickup Contact Microphone Triggers Transducer Prewired Piezo Disc Transducer Piezo Disc Piezoelectric Pickup
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Amazon.com: 20mm Piezo Transducer with Soldered Wire (Pack of 20) : Industrial & Scientific
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uxcell® 20pcs 27mm Diameter Piezo Discs Piezoelectric Ceramic Copper Buzzer Film Gasket: Amazon.com: Industrial & Scientific
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Amazon.com: E-outstanding 15PCS 10mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 4 Inches Wires for Acoustic Instrument : Musical Instruments
MakerHawk 4pcs Analog Ceramic Piezo Vibration Sensor Module 3.3V/5V for Arduino DIY Kit: Amazon.com: Industrial & Scientific
