Multivibrator is composed of transistors or integrated circuits. When , multivibrator vibrates and outputs audio .
Mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell
Can be controlled conveniently
Excellent practicability: Buzzer is an electronic sounder with integration structure. Using DC power, it is widely used on computers, printers, photocopiers, alarm, electronic toys, automotive electronic equipment, telephone, timer and other electronic products.
Connected to rated power and the buzzer will sound continuously.Can be controlled conveniently.