Piezoelectric buzzer module composed of a multivibrator, piezoelectric buzzer chip, impedance adjustment unit, resonator and top. The multivibrator, built from transistors or integrated circuits, when powered, vibrates and outputs an audio signal. The impedance adjuster drives the buzzer sound and provides convenient control over its operation. When connected to the rated power, the buzzer sounds continuously. Key benefits - Compact, integrated buzzer solution suitable for common electronics. - Simple drive and control through the impedance adjuster. - Reliable continuous audible output when powered at the rated level. Attributes - Function: audible sound generation - Compatibility: operates from rated power for continuous tone - Construction: includes resonator and top for integrated layout - Performance: delivers a continuous buzz when powered Applications - Alarm panels and security systems for continuous alerts - Household appliances and timers to indicate operation or completion - Electronics projects and maintenance indicators requiring audible feedback