Walfront 3-Pack DC 3V-24V Active Piezo Electric Buzzer Piezo Electronic Buzzer Alarm Active Buzzer Loud Continuous Sound with 100mm Sound Cable
Special Features
- Mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell
- Multivibrator vibrates and outputs audio signal
- Impedance matcher drives piezoelectric buzzer sound
- Connected to rated power and the buzzer will sound continuously
- Can be controlled conveniently
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