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buzzer DC3-24V Sound 90db
mini loudspeaker for arduino
35 MM Piezo
ISD1820 Sound Voice Recording Playback Module with Mic Sound Audio Microphone
buzzer alarm module
"2.1 Hi-Fi Class D Audio Amplifier Board 2 x 15W + 30W 10-18 VDC
15mm Piezo Elements Sounder Sensor Trigg
Buzzer
HQ microphone
