YQBOOM 10PCS 41mm Piezo Disc Transducer Contact Microphone Trigger Sound Sensor with 3.94 Inches Wires for Acoustic InstrumentMic Drum Trigger Acoustic Pickup CBG Guitar-Fast Shipping

Description

Perfect for beginner to use as touch-sensors, electronic drum triggers, buzzers, make your own contact mics, also used for watches, cameras, phones, electronic , computer, etc.

These pre-wired piezo pickups are easy to install, foot stompers and other home-made instruments for sound and vibration detection.

Resonant frequency 3.0~5.0+/- 0.5 KHz, resonant impedance 300 ohms max, low power consumption and high sensitivity.

Made of brass and ceramic, temperature resistant, stable, durable

Lead Length: 10cm /3.94 Contents: 10 PCS.