DZS Elec 15PCS 27mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 4 Inches Wires for Acoustic Instrument sold2024 Clear Construction: So it's easy

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Ideal for one-handed use

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Earphone*2

DZS Elec 15PCS 27mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 4 Inches Wires for Acoustic Instrument sold2024 Clear Construction: So it's easyDZS Elec 15PCS 27mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 4 Inches Wires for Acoustic Instrument Specification Plate Material: Brass. Resonant Frequency: 3. 5 + 0. 5 KHz. Resonant Impedance: less than or equal to 300 Ohms. Static Capacitance: 28000PF + 30%. Storage Temop: 30 degree Celsius +70 degree Celsius. External Diameter: 27mm 1. 06 Inch. Inside Diameter: 20mm 0. 79 Inch. Lead Length: 10cm 3. 94 Inch. Package