uxcell 5 Pcs Piezo Discs 35mm Acoustic Pickup Tran

High Performance Resonant frequency 3.05.0- 0.5 KHz resonant impedance 300 ohms max low power consumption and high sensitivity. Size Piezo pickup plate diameter 35mm 1.38 inches thickness 0.3mm 0.01 inches small thin and lightweight package 5 Pcs x buzzer film. Made of brass and ceramic temperature resistant stable durable and long service life. Easy To Use These pre-wired piezo pickups are easy to install foot stompers and other home-made instruments for sound and vibration detection. Wide Usage 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.